Answer:
1kg of onion is $1.5
Step-by-step explanation:
He paid $10 and got $1.50 back, meaning that the total price for the 2kg and 3kg of the potato and onion is:
10 - 1.5 = $8.50
Now, equating the prices of the two (take x as the cost of the potato per kg and take y as the cost of the onion per kg):
x -0.5 = y
x - y = 0.5 ---- Eq 1
Equating the total costs:
2x + 3y = 8.5 ---- Eq 2
Multiplying Eq 1 by 2:
2x - 2y = 1 ---- Eq 1'
Subtracting Eq 2 from Eq 1':
2x - 2x +3y - (-2y) = 8.5 - 1
5y = 7.5
y = 1.5
Substituting this into the first equation:
x - 1.5 = 0.5
x = 2
Hence,
the cost of the Potato is $2, and
the cost of the Onion per kg is $1.5
Hope this helps, and have a wonderful time ahead on Brainly!
PLEASE HELP ITS MATH THANK YOUUUU
Answer:
6 inches
Step-by-step explanation:
Because in one mile theres 3 inches
3x2=6
Help!! ASAP
Is relation below a function? If it is a function, state its domain.
{(0,3),(2,-3),(1,8),(2,3)}
A. The relation is not a function.
B. The relation is a function. The domain is {0,1,2}.
C. The relation is a function. The domain is {-3,3,8}
D. The relation is a function. The domain is {-3,0,1,2,3,8}
Answer:
A. The relation is not a function.
Step-by-step explanation:
Since 2 --> -3, and 2 --> 3, the relation is not a function.
8 x 46 = 8 x (40 + ______)
= (8 x 40) + (______ x _______)
= _______ + ________
= ________
The radius of circle A is r cm. The radius of circle B is twice the radius of circle A. What difference between the circumference of circle B and circle A (in cm)?
9514 1404 393
Answer:
2πr cm
Step-by-step explanation:
The circumference of a circle of radius r is ...
C = 2πr
For a radius of (r cm), the circumference is ...
A = 2π(r cm) = 2πr cm
For a radius of (2r cm), the circumference is ...
B = 2π(2r cm) = 4πr cm
Then the difference between the circumferences is ...
B -A = (4πr cm) -(2πr cm) = 2πr cm . . . . difference in circumference
Write an equation of the line in slope intercept form for (0,3) and (4,2)
Answer: 13
Step-by-step explanation:
Step-by-step explanation:
the slope is the y/x ratio of the y and x coordinate differences when going from one point to the other. and it is always the factor of x in the equation.
x changes by 4 units (from 0 to 4), y changes by -1 unit (from 3 to 2).
so, the slope is -1/4.
the intercept means the intercept with the y-axis. and that means the y value when x = 0. which is given already by the first point : 3
so, the equation is
y = -1/4 x + 3
Looking for the answer for the second one
Answer:
3 for the left one, and 5 on the right one.
Step-by-step explanation:
The scale factor is 2 because they are scaled from each other, meaning they have proportional side lengths. (The angles are also the same <hint for the next question>)
If the top side is 2.5, and the bottom is 5, then you divide to find the scaled factor since they correlate to each other.
If the side lengths on A is multiplied by 2, you can do that to the missing sides to find the answers.
3x-47=180 solve for x
Answer:
x=75.66
Step-by-step explanation:
+47 180+47
3x=227
divide 3 on each side
x=75.66
The elevation of a submarine with respect to sea level is displayed as - 125 feet. Which statement is correct?
A. The submarine is 125 feet above sea level.
B. The submarine is 125 feet below sea level.
C. The submarine is -125 feet above sea level.
D. The submarine is -125 feet below sea level.
B. The submarine is 125 feet below sea level.
Step-by-step explanation:
-124 feet because - (negative) means the submarine is 124 meters below sea level (masl).
Answer:
The elevation of a submarine with respect to sea level is displayed as - 125 feet. Which statement is correct?
A. The submarine is 125 feet above sea level.
B. The submarine is 125 feet below sea level.
C. The submarine is -125 feet above sea level.
D. The submarine is -125 feet below sea level.
Step-by-step explanation:
The keyword is below so it means it is a negative integer. Therefore the answer is letter D.Are lines segment Gl and HK congruent or not?
Answer:
congruent (I am sorry if wrong)
Step-by-step explanation:
GI are 8 distance apart from each other
and so is HK
One positive number is 5 times another number. The difference between the two numbers is 1464, find the numbers.
Answer:
The answer is 292.8
Step-by-step explanation:
You just have to divided 1464 by 5
A camp counsellor is fencing off a rectangular play area for the younger campers.
a) if she has 16m if fencing, how should she arrange the fencing to provide the greatest possible area?
b) How should she alter her diagram if she can use the dining hall as one of her boundaries?
Answer:
Step-by-step explanation:
a) if she had 16 m of fencing
all possible outcomes
4 by 4
2 by 6
1 by 7
the greatest should be 4 by4
b) she could alter it to 2 by 6
Expand 3(2y+1)
Answer this, please.
Answer:
6y + 3
Step-by-step explanation:
What's the domain of this function graph
Answer:
D) [0, ~)
Step-by-step explanation:
Domain of a Function:
the domain of a function is the set of values of x, the independent variable, that are responsible for the graph of the function.
For Example:
suppose, we have a function:
f(x) = 3x - 1
and it's domain is {1, 2, 3}
that means, the corresponding value of f(x) to these 3 values of x will be DEFINED, I.e., they exist and can be plotted on a graph.
The given function:
Therefore, for the given function, it's domain will be those values of x(the ones plotted on the horizontal line), that give some value to the function ,i.e., for which we can draw it's graph.
and since the graph starts from x = 0 and continues towards infiinity
(the arrow on the curve shows that the graph continues and hasn't yet come to a stop.)
So, that way we got [0, ~). ^^
Ana and Ling are solving |3x + 14| = -6x.
Is either of them correct?...............................
Explain your reasoning.
Answer:
No! Both are wrong!
Step-by-step Explanation:
the value of absolute function, (|.|) is always positive
that means -6x always has to be positive
and for -6x to be positive x has to be negative
(since, two negatives make a positive)
therefore, the value of x to the equation will be a negative value and not a positive one.
Ana thinks both positive and negative values of x will be the solution, whereas Ling thinks negative value of x can't be a solution. So, they're both wrong.
ONLY negative value of x will be the solution.
m các ma trận vuông cấp hai thỏa mãn
a) A2 = O,
b) A2 = I,
c) A2 = A,
d) AB = BA với B =
1 3
2 4
.
Step-by-step explanation:
ano taong diyan po pic mo
4•d=d•4
Choose the property of real numbers that justifies the equation
Answer:
Commutative Property of Multiplication
Step-by-step explanation:
Commutative Property of Multiplication
a • b = b • a
4 • d = d • 4
"commute = to get up and move to a new location: switch places"
What are the steps to solving this following equation? Put answer and steps.
(5) * (-9) * (-2)
Answer:
90
Step-by-step explanation:
you can multiply anything here in any order.
you could first do 5 times -9
5 * -9 = -45
and then multiply the -2 to the -45
-2 * -45 = 90
A student pushed a cart and records its position as it moves along a track. During
which part or parts of the track did the cart experience unbalanced forces? *
Motionless
Speed Increased
Speed Decreased
E--
OO
Part 1 only
Parts 1 and 2 only
Part 3 only
Parts 2 and 3 only
I need help with this one! Anyone, someone help
Answer:
Equation: P(w) = 4w + 8
Step-by-step explanation:
The step is zero. That and being told that the relationship is linear.
The general equation is P(w) = mw + y intercept.
When w = 0 then P(w) = 8
The only way that can happen is when P(w) = 0 + y intercept
y intercept = 8 because P(w) = 8
So far what we have is P(W) = mx + 8 So you are starting with 8 rats.
Now suppose w = 2. The number of rats P(2) that you get is 16
So you are solving for m.
16 = m*2 + 8 Subtract 8 from both sides
16 - 8 = 2*m + 8 - 8 Combine
8 = 2m Divide by 2
8/2 = 2m/2
m = 4
Tom must choose a number between 49 and 95 that is a multiple of 4, 7, and 14. Write all the numbers that he could
choose. If there is more than one number, separate them with commas.
Answer:
56;70;84
Step-by-step explanation:
What is the slope of the linear equation that has the values shown?
x y
-4 15
-2 9
0 3
2 -3
4 -9
Answer:
xy-29490
Step-by-step explanation:
the temperature was 80degrees F and then fell 20 degrees F. draw a diagram to represent.
There are 31 students in a class and 61.3% of these students passed their Math Applications test. What number of these students passed their test? Round your answer to the nearest whole number if necessary.
Answer:
19
Step-by-step explanation:
Alr so.
what you have to do is first convert yourpercentage into a decimal and to do that you need to move the decimal 2 places to the left like so-
61.3% ---> .613
Next you need to multiply 31 x .613 which gives you 19.003
or 19 Passed :)
enjoy!!!!
Answers to these questions please, no work required
Answer:
14. -1
15. -101/53
16. -3/2
Step-by-step explanation:
Please help!!!
Solve for X
Answer:
[tex]x = - \frac{1}{56} [/tex]
Step-by-step explanation:
-x/56x = 2
-1/56 = 2
x = -1/56
4p - 3=17
Please help
Answer:
hey there,
4p=17+3p=20/4So now p=5Step-by-step explanation:
#BEBRAINLYAnswer:
5
Step-by-step explanation:
17+3=20
4×5=20
20-17=3
Given f(x)=3x-4 and g(x)=-2x+7 evaluate
Step-by-step explanation:
e...
First;
g(5)=-2×5+7=-3
then
f(g(5))=3×-3-4=-9-4=-13
f...
g(2)=-2×2+7=3
now
g(g(2))=-2×3+7=1
How would i graph the solution set for 1/3x (greater than or equal to) y+2?
Matthew has $540 in his bank account. He subscribes to a music streaming service for $7.99 per month. If he makes no other deposits or withdrawals, what is Matthews new account balance after 5 months of his subscription?
Answer:
500.05
Step-by-step explanation:
7.99 x 5 is of course 39.95 and 39.95 - 540 is 500.05 and that's on period
Order of operations
11 + 14 ÷ 2 - 1
Answer:
17
Step-by-step explanation:
(11+14÷2)−1
(11+7)−1
18−1
17
