Answer:
x = 1/2 or 0.5, y = 1
Step-by-step explanation:
it just means a system of equations.
-4x + 3y = 1
6x - y = 2
let's multiply the second equation by 3 and add both resulting equations :
-4x + 3y = 1
18x - 3y = 6
-------------------
14x 0 = 7
14x = 7
x = 7/14 = 1/2 = 0.5
6x - y = 2
6×1/2 - y = 2
3 - y = 2
-y = -1
y = 1
Evaluate the expression
so you write 16 but i don't speak English very good i want help you 2(6+3)-2 ok you you going multiplying 2×6=12+6=18-2=16 so 16
Pls help HElp Asap. .
Given g(x) = −4x + 4, identify the domain, range, and x-intercept of the function.
The domain of the function is -∝ < x < ∝, the range of the function is -∝ < y < ∝, and the x-intercept of the function is (-1, 0)
How to identify the domain, range, and x-intercept of the function?The equation of the function is given as
g(x) = 4x + 4
The function g(x) is a linear function.
There is no restriction on the input values and output values of a linear function
This means that the domain and the range of a linear function are the set of all real numbers
Set g(x) to 0, to determine the x-intercept
So, we have
4x + 4 = 0
Divide through by 1
So, we have
x + 1 = 0
Evaluate the like terms
x = -1
Hence, the domain of the function is -∝ < x < ∝, the range of the function is -∝ < y < ∝, and the x-intercept of the function is (-1, 0)
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The function f(x) is given by the set of ordered pairs.
{(1,0), (–10,2), (0,6), (3,17), (–2,–1)}
Answer:
Question? where is a question...that is a statement
a pizza parlor can make 100 pizzas in an evening. they make 40 pepperoni pizzas and 60 extra cheese pizzas. they are producing each pizza at the lowest possible cost. 100 people order pizza, but 50 people would like a pepperoni pizza and 50 would like an extra cheese pizza. this pizza parlor is what?
The pizza parlor is technically efficient, but its not allocatively or economically efficient because technically efficient if all supply is used, allocate is if desired demand is met.
What is meant by technically efficient?Technical efficiency is related to how productive a company can be given this same fewest inputs, as well as resources, required to complete a task.
An input would be any quantifiable resource required to produce an output, or product. Labor, materials, and equipment are all examples of inputs. Outputting cakes, for example, necessitates at least the mentioned inputs: bakers, ingredients, and ovens.What is meant by economically efficient?The concept of economic efficiency is related but distinct. Technical efficiency seeks to minimize inputs, whereas economic efficiency seeks to minimize costs, that might or might not necessitate fewer inputs.
In other words, the company wants to cut costs as much as possible even while meeting production targets. For instance, the bakery would perhaps purchase cheaper materials to lower costs without lower productivity.To know more about technical efficiency and economic efficiency, here
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The complete question is;
A pizza parlor can make 100 pizzas in an evening. They make 40 pepperoni pizzas and 60 extra cheese pizzas. 100 people order pizza, but 50 people would like a pepperoni pizza and 50 would like an extra cheese pizza. This pizza parlor is what?
Technically efficient
allocatively efficient
economically efficient
(Please answer! :) )
Answer:
ok
Step-by-step explanation:
guys helepepepe Which lines are perpendicular?
will give ur brainliest help plss
Answer:
All the lines (A,B,C) are perpendicular because they are all intersecting at a 90 degree angle.
Step-by-step explanation:
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!
What is the absolute value of:
-3|2y-3|+2=-20
Answer:
Exact Form:
y = 31/6, −13/6
Decimal Form:
y = 5.16,−2.16
Mixed Number Form:
y = 5 1/6,−2 1/6
which of these objects are malleable check all that apply
Tin fork and knife from a camping set
Antique ceramic vase
Steel pole fence post
Marble sculpture
glass tabletop
Copper coin
The objects are (A) tin fork and knife from a camping set, (C) a Steel pole fence post, and (F) a Copper coin are correct.
What is malleable?A material is said to be malleable if it is easy to roll or hammer a thin sheet out of it.
It is given that:
The list of objects is given in the question.
As we know from the definition of malleable; the material is said to be malleable if it is easy to roll or hammer a thin sheet out of it.
Metals have the physical quality of malleability, which makes them easy to crush, hammer, or bend.
Metals that are bendable include copper coins, steel fence posts, and camping forks and knives made of tin.
Thus, the objects are (A) tin fork and knife from a camping set, (C) a Steel pole fence post, and (F) a Copper coin are correct.
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The Morris family rented
boat over Labor Day weekend. The boat uses an average of 2 gallons of gas per hour
when it is pulling water skiers and 1 gallon per hour when not pulling water-skiers. The gas for the boat costs $2.25
per gallon How much money is spent on gas per hour when the boat is pulling water-skiers if the Marris family only
water skied for 2 hours?
The total amount spent on gas is $9.
How much is spent on gas?Multiplication is the mathematical operation that is used to determine the product of two or more numbers. Multiplication is the method that is used to add a number by itself a particular number of times. The sign used to denote multiplication is x. Other mathematical operations are subtraction, division and addition.
In order to determine the total amount spent on gas, multiply the cost of one gallon by the number of hours skied and the amount of galloons used per hour.
The total amount spent on gas = cost of one gallon of gas x number of hours skied x number of gallons used per hour
2 x 3 x $2.25 = $9
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Answer:
Step-by-step explanation:
The total amount spent on gas is $9.How much is spent on gas?Multiplication is the mathematical operation that is used to determine the product of two or more numbers. Multiplication is the method that is used to add a number by itself a particular number of times. The sign used to denote multiplication is x. Other mathematical operations are subtraction, division and addition. In order to determine the total amount spent on gas, multiply the cost of one gallon by the number of hours skied and the amount of galloons used per hour. The total amount spent on gas = cost of one gallon of gas x number of hours skied x number of gallons used per hour 2 x 3 x $2.25 = $9To learn more about multiplication, please check:
The number of cable TV systems recently decreased from 14,100 to 13,920. Find the percent decrease.
The percent decrease was %. (Round to the nearest tenth, if needed.)
Answer:
1.3
Step-by-step explanation:
[tex]\frac{14100-13920}{14100} \times 100 \approx 1.3[/tex]
1. What is the slope of the line that passes through the given points? (1
(2, 12) and (6, 11)
0-11
4
4
04
04
Answer:
Step-by-step explanation:
The slope of the line that passes through the given points (2, 12) and (6, 11) is -1/4.
PLEASE HELP ASAP
i would really appreciate it!
Using the probability concept, the tree diagram and the probabilities are given on the image at the end of the answer.
What is a probability?A probability is given by the number of desired outcomes divided by the number of total outcomes.
For the first branch, we consider the first counter, which considering the eight counters has these following probabilities.
Blue: 1/8.Red: 3/8.White: 4/8.Then on the second branch, we consider the probabilities for the second counter, which in the case of a blue first counter are given as follows:
Red: 3/7.White: 4/8.The same logic is applied for the other branches given in the picture at the end of the question.
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help me with this ques. (need solution and answer both) thanks so much <3
Answer:
1.) 27a^11 + 18a^9 -72a^7
2.) 6p^4q^3 - 10p^3q + 4p^2q3
Step-by-step explanation:
1.) Distribute and do the math
-9a^5 x (-3a^6) - 9a^5 X (-2a^4) - 9a^5 x 8a^2
27a^11 + 18a^9 -72a^7
2.) Distribute and do the math
2pq^2q x 3p^2q^2 - sp^2q x 5p + 2p^2q x 2q^2
6p^4q^3 - 10p^3q + 4p^2q3
Including a 5% sales tax, an inn charges $189 per night. Find the inn's nightly cost before the tax is added.
The inn's nightly cost before tax is added is
Answer:
180
Step-by-step explanation:
Nightly cost = x
x × 5% = Sales Tax
Total Cost : Percentage
189 : 105%
x : 100%
Cross multiply:
189 × 100% = 105% × x
189 = 1.05x
189 ÷ 1.05 = x
x = 180
210 sticks of gum each stick sold for 50 cents how much money did i make
If there is an increase in the money supply that causes prices to rise and
leads to inflation, what happens to money?
• A. It loses purchasing power.
• B. It changes from fiat money to commodity money.
•
C. It changes from commodity money to fiat money.
•
D. It gains purchasing power.
SUBMIT
Mathematics of personal finance
The increase in the money supply that causes prices to rise and leads to inflation, loses purchasing power.
What is inflation?
Inflation refers to the persistent rise in the general prices of commodities in the economy over a period of time. If the prices of goods and services increase in an economy without an increase in income of people, it reduces the purchasing power of individuals.
This follows the law of demand which states that; the higher the price, the lower the quantity demanded; the lower the price, the higher the quantity demanded.
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The table below shows numerical summaries for the length of dogs' tails in inches (measured from hip bone to tail
tip) for several breeds of dogs.
Which of the following statements is true?
This is a skewed-left distribution, because the mean is less than the median.
O This is a skewed-right distribution, because the mean is less than the median.
This is a skewed-left distribution, because the mean is greater than the median.
This is a skewed-right distribution, because the mean is greater than the median.
Because the mean is the same as the median, this distribution is roughly symmetric.
The correct option regarding the skewness of the distribution is given by:
This is a skewed-left distribution, because the mean is less than the median.
Given the mean and the median of a distribution, how we classify it's skewness?If the mean is greater than the median, the distribution is right-skewed, also called positively skewed. Otherwise, if the median is greater than the mean, the distribution is left-skewed, also called negatively skewed.
In this problem, we have that:
The mean is of 10.4.The median is of 13.4.The median is greater than the mean, hence the correct option is given by:
This is a skewed-left distribution, because the mean is less than the median.
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Kevin went shopping for a new scooter. He bought one on sale for 15% off its regular price of $140. If sales tax is 8%, what was the total cost of the scooter?
Answer:
128.52
Step-by-step explanation:
140 × (1-0.15) = 119
119 × 1.08 = 128.52
Answer:
$128.52
Step-by-step explanation:
Firstly to find the price of the scooter, you divide 140 by 100 and then multiply it by 15. The answer is what you subtract from the original price.
15(140/100) = 21
140 - 21 = 119
Now that we have the price of the scooter after the discount, we need to figure out the price of the sales tax. Sales tax is based on the reduced price, so we need to take the same steps as before to find the price. Divide 119 by 100, then multiply it by 8, then add the total to 119.
8(119/100) = 9.52
119 + 9.52 = 128.52
Answer = $128.52
can someone help me with this, i don’t understand
Answer:
Step-by-step explanation:
This is just a complicated method to do ratios and proportions
use the given x and y values and the ratio will be determined by k.
Then use that k and the second x value to find y.
-8 = k(20)
k = -2/5
Next part
y = (-2/5)(-4)
y = 1.6
Which table has a constant of proportionality between y and x of 0.3?
Table C has a constant proportionality between y and x of 0.3.
A constant is an expression-unchanging value or number. It always has the same value.
In mathematics, proportionality denotes a linear relationship between two quantities or variables. Both quantities increase in size when one double, and both decrease in size when one drops to a tenth of its original value.
The answer is the same as the one in the y column when you multiply the x number in table C by 0.3. The value that remains constant in the ratio is the proportionality constant. It is evident that table C is accurate because when you multiply each value in the x column by 0.3, the result is always the value in the y column.
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When the sample of participants is reflective of the characteristics of the population, it is said to be?
It is claimed that the sample of participants is generalizable since it reflects the characteristics of the population.
What is Generalizability? Simply said, generalizability is a measurement of the applicability of a study's findings to a larger population or set of circumstances. It is considered that a study has strong generalizability if its findings may be applied broadly to a wide range of individuals or circumstances. Researchers use generalizability in a scholarly setting. It can be characterized as the extrapolation of findings and recommendations from a study done on a sample population to the entire population.To learn more about generalizable, refer to:
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Is 450 divisible by 2,3,4,5,6,8,9 or 10 explain why please
Help ASAP
Answer:
2,3,5,6,9 and 10
Step-by-step explanation:
450/2 = 225
450/3 = 150
450/4 = 112.5
450/5 = 90
450/6 = 75
450/8 = 56.25
450/9 = 50
450/10 = 45
To be divisiable, the answer should be an integer.
Thus: 2,3,5,6,9 and 10 are numbers which 450 is divisible by
Answer:
see below
Step-by-step explanation:
2×3×3×5×5 is it's prime factorization which has 2, 3, 4, 5, 6, 9, 10
I need help with example 9 please
Answer:
a reflection across the y-axis and a translation up of 4
Step-by-step explanation:
RSV has coordinates R(2,1), S(3,2), V(2,6). A translation maps point R to R' at
(-4,8). What are the coordinates for S' and V' for this translation?
Answer:
S' (- 3, 9 ) , V' (- 4, 3 )
Step-by-step explanation:
consider the coordinates of R and R'
R (2, 1 ) , R' (- 4, 8 )
2 → - 4 in the x- direction is - 6
1 → 8 in the y- direction is + 7
then the translation rule is
(x, y ) → (x - 6, y + 7 )
S (3, 2 ) → S' (3 - 6, 2 + 7 ) → S' (- 3, 9 )
V )2, 6 ) → V' (2 - 6, 6 + 7 ) → V' (- 4, 13 )
solve 2/43=t/13 a. 2/559 b. 43/26 c.559/2 dm 26/43
Option D 26/43 .
Given equation 2/43=t/13
To solve these type of question we have to follow some steps
that are as follows
Multiply all terms by the same value to eliminate fraction denominators
same value is 559 ....so multiply with 559 both sides
2/43=t/13
559×2/43 = 559×t/13 (by multiplying in LHS and RHS with same value)
Cancel multiplied terms that are in the denominator
13 ×2=43t
Multiply the numbers
26=43t
Divide both sides by the same factor
26/43=43t/43
Simplify
Cancel terms that are in both the numerator and denominator
Move the variable to the left
t=26/43 is the answer.
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Evaluate the function.
ƒ(x) = −x² − 4x – 12
Find ƒ(-7)
Given ~
[tex] \tt \: f(x) = - {x}^{2} - 4x - 12[/tex]
[tex] \: [/tex]
put the value of x = -7 in given function ~
[tex] \tt \: f( - 7) = - ( { - 7})^{2} - 4( - 7)- 12[/tex]
[tex] \: [/tex]
[tex] \tt \: f( - 7) = - 49 +28 - 12[/tex]
[tex] \: [/tex]
[tex]\tt \: f( - 7) = - 21 - 12[/tex]
[tex] \: [/tex]
[tex] \underline{ \boxed{ \tt \red{ f( - 7) = -33}}}{ \green ✓}[/tex]
[tex] \: [/tex]
hope helps ~
What is 8-6= for the sum
The value and the summation expression are 2 and -6 + 8
How to determine the value and the summation expression?The expression is given as:
8 - 6
When expressed as a sum, the expression can be rewritten as
-6 + 8
When the expression is evaluated, we have
-6 + 8 = 2
Hence, the value and the summation expression are 2 and -6 + 8
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Equivalent expression to (3*6) to the 2nd power
The required equivalent expression would be 3¹² y¹⁰ which is the correct option (C).
What is an exponential function?An exponential function is defined as a function whose value is a constant raised to the power of an argument is called an exponential function.
It is a relation of the form y = aˣ in mathematics, where x is the independent variable.
We have been given that exponential function as
⇒ (3⁶/y⁻⁵)²
= (3⁶/1 / 1/y⁵)²
= (3⁶ × y⁵)²
= 3¹² y¹⁰
Therefore, the required equivalent expression would be 3¹² y¹⁰ which is the correct option (C).
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The question seems to be incomplete the correct question would be
Select the equivalent expression to (3⁶/y⁻⁵)²
(A) 3¹⁰ y¹²
(B) 3⁶ /y¹⁰
(C) 3¹² y¹⁰
A bag contains 1 red, 1 yellow, 1 blue, and 1 green marble. What is the probability of choosing a green marble, not
replacing it, and then choosing a red marble?
O
16
O
12
O
11
Answer:
The answer will be
[tex] \frac{1}{4} \times \frac{1}{3} = \frac{1}{12} [/tex]
Or 12%
At a used book sale, all paperback books are the
same price. Henry buys 4 paperback books for
$3.20. Lainey buys 9 paperback books.
Answer:
Uh Lainey spends 7.20$
Step-by-step explanation:
3.2/4 is 1 book price, 0.8 is one book price, so 9 books price is 0.8*9 which is 7.2
