The answer is:
11.18
Hope This Helps!!
:)
wouldn't you multiply all three?
Answer:
-21
28
Step-by-step explanation:
1) if r = -4
Substitute r = -4 in 3r - 9
= 3 * (-4) - 9
= -12 - 9
= -21
2) ( 4 / 7 ) * x = 16
4 * x = 16 * 7
x = 4 * 7
x = 28
Answer:
Step-by-step explanation:
<u>Area of the top section:</u>
- A₁ = x*(x - x + 3) = x*3 = 3x in²
<u>Area of the bottom section:</u>
- A₂ = (x + 4)(x - 3) = x² + x - 12 in²
<u>Total area:</u>
- A = A₁ + A₂ =
- (3x) + (x² + x - 12) in²
Correct choices are C and D
<h3>
Answer:</h3>
1 27/28 ≈ 1.964 gallons/hour
<h3>
Step-by-step explanation:</h3>
You want gallons in the numerator of your unit rate, but that unit is in the denominator of the mileage rate. So, the computation must involve division by 28 mpg. Hours is already in the denominator of 55 mph, so the computation will involve multiplication by that rate.
... (55 mi/h)/(28 mi/gal) = (55 mi/h)·(1 gal/(28 mi)) = 55/28 gal/h
... = 1 27/28 gal/h
