An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The value of (2a - 13) ÷ b/15 when a = -2/5 and b = -8.25 is [tex]25\frac{75}{825}[/tex]
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
(2a - 13) ÷ b/15
The value of (2a - 13) ÷ b/15 when a = -2/5 and b = -8.25.
= (2a - 13) ÷ b/15
= (2 x (-2/5) - 13) ÷ -8.25 / 15
= (-4/5 - 13 ) ÷ -8.25 / 15
= (-4 - 65) / 5 ÷ -8.25 / 15
= -69/5 ÷ -8.25/15
= -69/5 x -15/8.25
= 69 x 3 / 8.25
= 207 / 8.25
= 20700/825
We will write this in a mixed fraction.
= [tex]25\frac{75}{825}[/tex]
Thus,
The value of (2a - 13) ÷ b/15 when a = -2/5 and b = -8.25 is [tex]25\frac{75}{825}[/tex]
Learn more about expressions here:
https://brainly.com/question/3118662
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A history teacher has given her class a list of seven essay questions to study before the next test. The teacher announced that she will choose four of the seven questions to give on the test, and each student will have to answer three of those four questions. Suppose that a student has enough time to study only five questions. What is the probability that the student will have to answer a question that he or she did not study?
Bella has a stack of 41 bills (ones, fives, and tens) in an envelope. She has 3 less tens than fives and the quantity of ones doubles the number of fives. Write and solve an equation to determine how many of each bill type she has
Answer:
x+(x-3)+(2*x)=41
Step-by-step explanation:
We know that the other two bills are based of of a constant value for fives. Therefore, the fives can be x. There are 3 less tens than fives, so the number of tens equals x-3. We double the number of fives to get the number of ones, so the number of ones equals 2 times x. When we add all 3 of those together, we get our total number of 41. If you want to solve, you have to solve for x, then you can plug it back into the formula. I hope this helps!
Solve for x
simple geometry
Step-by-step explanation:
[tex]2x - 10 + 4x + 16 = 180 \\ \\ 4x - 2x + 16 + 10 = 180 \\ \\ 2x = 180 - 26 \\ \\ 2x = 154 \\ \\ x = \frac{154}{2} \\ \\ x = 77[/tex]
Answer:
From the above attachment we can conclude that,
[tex](2x - 10)° + (4x + 16)° = 180° \\ 2x - 10 + 4x + 16 = 180 \\ 2x + 4x - 10 + 16 = 180 \\ 6x + 6 = 180 \\ 6x = 180 - 6 \\ 6x = 174 \\x = \frac{174}{6} \\ \boxed{x = 29}[/tex]
Therefore, the value of x is 29
x = 29 is the right answer.Mark uses an app that shows him how many kilometers he has run to prepare for a marathon. The app said he ran 9.654 kilometers. He wants to post online how many miles he ran. Mark ran ___ miles.
Answer:
5.9987174899
Step-by-step explanation:
9.654km / 1.609344
= 5.9987174899mi
What is the slope of a line perpendicular to the line whose equation is 3y + 2x = -5?
Answer:
I think the slope of the line is -2/3
Bakit mahalaga humingi ng tulong sa iba?
Answer: Ang paghanap ng tulong ay binabawasan ang gastos at epekto ng sakit at pinapayagan ang maraming tao na umunlad at umunlad at mag-ambag sa isang mas positibong lipunan. Ang paghanap ng tulong ay dapat, makita, bilang isang positibong hakbang; isa na nagpapabuti sa kalusugan at kabutihan at kaligayahan.
Step-by-step explanation: Pinoy ka? Ako den
Answer:
ayon sa internet, "ang paghingi ng tulong ay binabawasan ang gastos at epekto ng karamdaman at pinapayagan ang mas maraming tao na umunlad at umunlad at mag-ambag sa isang mas positibong lipunan." Sa madaling salita, ang paghihingi ng tulong ay maaaring payagan kang mapalibutan ang iyong sarili sa mga tao na maaaring magpaganda sa amin.
(gumamit ako ng tagasalin. pasensya na kung hindi mo maintindihan!) :(
Step-by-step explanation:
Abigail has a bag that contains pineapple chews, lemon chews, and watermelon
chews. She performs an experiment. Abigail randomly removes a chew from the bag,
records the result, and returns the chew to the bag. Abigail performs the experiment
35 times. The results are shown below:
A pineapple chew was selected 20 times.
A lemon chew was selected 7 times.
A watermelon chew was selected 8 times.
Based on these results, express the probability that the next chew Abigail removes
from the bag will be a flavor other than watermelon as a decimal to the nearest
hundredth.
Answer:
w=8
w+p+l = 35
=8\35 =0.228
Seventy-Two Inc., a developer of radiology equipment, has stock outstanding as follows: 80,000 shares of cumulative preferred 3% stock, $20 par and 405,000 shares of $25 par common.
During its first four years of operations, the following amounts were distributed as dividends: first year, $30,000; second year, $74,000; third year, $100,000; fourth year, $100,000.
Determine the dividends per share on each class of stock for each of the four years. Round all answers to two decimal places. If no dividends are paid in a given year, enter "0.00".
Which of the following is the graph of y=√-x-3?
Answer:
3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
-x-3 ≥ 0
-x ≥ 3
x ≤ -3
HELP LAST ATTEMPT MARKING AS BRAINLIEST
someone please solve this for me i swear i will give you a brainliest i really need help on this
Answer:
1) Yes, it is rational.
2) Yes, it is rational.
3) There are three repeating digits.
Step-by-step explanation:
Lets solve them in order.
1) First lets see what the characteristics of a rational number are. We know that, to be a rational number, a number must either:
Can be expressed as a fractionRepeatAre integersAnd terminateAn irrational number is a number that never repeats or ends. They are also not integers, but we will focus on the never repeats or ends part.
So, lets look at it. Does 0.147 repeat, terminate, be expressed as a fraction, and is it an integer? Well, its not an integer, it doesn't repeat, and it isn't a fraction. However, it does terminate, which means it is rational.
2) Is 0.147 repeating a rational or irrational number. Remember, we need to see if it terminates, repeats, is an integer, or is a fraction. Well, it doesn't terminate, it is not a fraction, and it is not an integer. However, it does repeat. That means that it is a rational number.
3) Now, to figure out how many repeating digits there are. In math, we know that the line above the numbers in the decimal place means that they repeat. So simply find out how many digits are below that line. Well, we see that 1, 4, and 7 are under the line. In total that is three digits. So the answer is 3.
The entire graph of the function f is shown in the figure below.
Write the domain and range of f using interval notation.
Answer:
range =[-5,5]
domain =[-2,3]
Pls help. Abcdefghijklmnopqrstuvwxyz?????
Answer:
72
Step-by-step explanation:
Answer:
72
Step by Step Explanation:
By definition, the angle labeled as x and the angle labeled as 2x-36, when added, they're equal to 180.
You set up an equation to solve for x:
x+2x-36=180
3x-36=180
3x=216
x=72
A women buys 23 pounds of potatoes. She gives 10% of them to a neighbor and 15% of them to her mother. How many pounds dose she have left?
Answer:
= 17.25 pounds (Answer)
Step-by-step explanation:
Potatoes she bought = 23 pounds
Amount she gave outsiders= 10+15=25%
= 23×25/100= 23/4=5.75 pounds
Potatoes left with her= 23 — 5.75
= 17.25 pounds (Answer)
Answer:
17.25 pounds
Step-by-step explanation:
10% of 23 is 2.3
15% of 23 is 3.45
Add them together you get 5.75
Subtract 5.75 from 23
Answer is 17.25
Calculate the total area of these irregular shapes by fars & A1 8 and what pls help me AZ 10 10
Step-by-step explanation:
que dice? aye evolution xou
35 more than twice the number is 65. Find the number.
Answer: 15
Step-by-step explanation:
2x + 35 = 65
2x = 30
x = 15
PLZ HURRY IT'S URGENT!!!
What is the measure of < C?
options:
30°
60°
90°
180°
Answer: [tex]60^{\circ}[/tex]
Step-by-step explanation:
x + 2x + 3x = 180 [angles in a triangle add to 180 degrees]6x = 180 [combine like terms]x = 30 [divide both sides by 6]So, [tex]\angle C=2(30)=\boxed{60^{\circ}}[/tex]
will mark brainlist
Simplify. 3/2(x+3/4)−(x+1)
5/2x+17/8
12x+17/8
1/2x+1/8
Answer:
3/2(x+3/4)-x-1
Step-by-step explanation:
Remove the parenthesis
Write an equation for the description.
The length of a rectangle is twice its width. The perimeter of the rectangle is 130 feet.
Answer:
2x + 4x = 130
x = 21.7 feet
Step-by-step explanation:
Width: x
Length: 2x
2x + 2(2x) = 130
6x = 130
x = 130/6
x = 21.7 feet
f(x)=3x 3 inverse function
Step-by-step explanation:
if I understand this correctly than you are looking for the inverse function of f(x) = y = 3x³.
the inverse function simply tries to calculate the original x it of the original y.
and then, to make it a formal function, we rename x to y and y to x.
y = 3x³
x³ = y/3
[tex]x = \sqrt[3]{ \frac{y}{3} } [/tex]
=> as "regular" function
[tex]y = {f}^{ - 1} (x)= \sqrt[3]{ \frac{x}{3} } [/tex]
When you multiply or divide a positive and a negative number you get a _________
Answer:
You also have to pay attention to the signs when you multiply and divide. There are two simple rules to remember: When you multiply a negative number by a positive number then the product is always negative. When you multiply two negative numbers or two positive numbers then the product is always positive.
Step-by-step explanation:
Evaluate the expression.
Answer:
22
Step-by-step explanation:
hoffe das hilft :)
Answer:
[tex] \frac{ -4 [ - 5(7 - 13) - 19]}{2( - 1)} \\ \\ \frac{ - 4[ - 35 - 65 - 19]}{ - 2} \\ \\ \frac{ - 4 [ - 119] }{ - 2} \\ \\ \frac{ - 4 - 119}{ - 2} \\ \\ \frac{ - 123}{ - 2} \\ 61.5 \: \: \: \: answer \: [/tex]
Alejandra currently has a balance of $2,254 in her checking account. She deposits a $873.84 paycheck, a $25 rebate check, and a personal check for $358 into her checking account. She wants to receive $350 in cash. How much will she have in her account after the transaction?
Answer:
$3160.84
Step-by-step explanation:
2254 + 873.84 + 25 + 358 = 3510.84
3510.84 - 350 = 3160.84
Simplify the expression to a + bi form:
(1 – 6i) + (12 + i)
[tex]\\ \sf\longmapsto (1-6i)+(12+i)[/tex]
[tex]\\ \sf\longmapsto 1-6i+12+i[/tex]
[tex]\\ \sf\longmapsto 1+12-6i+i[/tex]
[tex]\\ \sf\longmapsto 13-5i[/tex]
[tex]\sf{13+(-5i) }[/tex]
Step-by-step explanation:
we have to Simplify the expression(1 – 6i) + (12 + i) to a + bi form
[tex](1 – 6i) + (12 + i)\\\\1-6i+12+i\\\\1+12-6i+i\\\\13-5i\\\\13+(-5i)[/tex]
that passes through the
What is the point-slope form of the line with slopez
point (-4, – 7)?
y - 4 = } (x – 7)
—
Oy - 7 = 3 (x – 4)
Oy+7= } (x+4)
Oy+4= } (x+7)
It’s question 5
Answer:
answer 3
Step-by-step explanation:
point slope form is
[tex]y - y1 = m(x - x1)[/tex]
solve for x
7(x - 3) = 4(x + 5)
Calculator
Grant reads a story about a turtle that swam 25 feet in 40 seconds. He assumes the time, t, that it takes the turtle to swim a distance of d feet is a proportional relationship, Grant
starts to create the table shown for other times and distances the turtle swims.
Enter the missing numbers in the table to represent the proportional relationship
Time
(seconds)
Distance
(feet)
1
10
30
40
25
Answer:
100
Step-by-step explanation:
Choose the sentence that is equivalent to the following statement:
Among any two consecutive positive integers, there is at least one integer that is not prime.
a. If x and y are positive integers, then x is not prime and y is not prime.
b. If x and y are positive integers, then x is not prime or y is not prime.
c. If x is a positive integer, then x is not prime and x 1 is not prime.
d. If x is a positive integer, then x is not prime or x 1 is not prime.
Answer:
bbbbbbbb
Step-by-step explanation:
bbbbbbbbb;bbbbbbbvvvbbbbb;vvvvvvvvvvvvvv
17 percent of what is 40
45 of 155 is what
What percent of 153 is 137
Answer:
Number 1 :If you are using a calculator, simply enter 40×100÷17, which will give you the answer.
Number 2: 45 percent of 155 is 69.75.
Number 3: 137 is what percent of 153? = 89.54
what expression is equivalent to (f + g)(4)
Answer:
Answer: The Expression (f + g)(4) is equal to f(4) + g(4).
Step-by-step explanation:
