Answers:
- The direct variation equation is y = 5x
- If x = 4, then y = 20
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Explanation:
Let's say that the letter k replaces the green box
We have the equation y = kx
Plug in (x,y) = (7,35) to get the equation 35 = k*7
Dividing both sides by 7 leads to k = 5
Therefore, the direct variation equation is y = 5x
We can check this by plugging in x = 7
y = 5x
y = 5*7
y = 35
So x = 7 leads to y = 35 as expected.
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Do the same for x = 4
y = 5x
y = 5*4
y = 20 when x = 4
Side note: direct variation equations always go through the origin.
Answer:
0.03
Step-by-step explanation:
<u>Brand A: 11 fluid ounces and costs $2.31</u>
2.31 / 11
0.21 per fluid ounce
<u>Brand B: 15 fluid ounces and costs $2.70</u>
2.70 / 15
0.18 per fluid ounce
<u>Subtract: </u>
0.21 - 0.18
0.03
Answer: 0.03
Answer:
Raleigh.
Step-by-step explanation:
Just look for the Fahrenheit with the smallest number.
Answer:
Here is the answer ..hope it helps:)
Answer:
-8x^3+4xy
Step-by-step explanation:
-4x·2x^2
Multiply the like terms
-8x^3
Two negatives equal a positive so
-4x(-y)
=+4xy
Therefor the answer is:
-8x^3+4xy
