r-12
substitute in r=7
so 7-12 = -5
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Formula
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Volume = Length x Width x Height
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Apply Formula
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Volume = 10 x 30 x 1/3 = 100 ft³
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Answer: 100 ft³
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Answer: C. (-4, -2)
<u>Step-by-step explanation:</u>
First, eliminate one of the variables and solve for the remaining variable:
2x - 5y = 2 → 3(2x - 5y = 2) → 6x - 15y = 6
3x + 2y = -16 → -2(3x + 2y = -16) → <u> -6x - 4y = 32</u>
-19y = 38
y = -2
Next, replace "y" with -2 into either of the original equations to solve for x:
2x - 5y = 2
2x - 5(-2) = 2
2x + 10 = 2
2x = -8
x = -4
x = -4, y = -2
<u>Check:</u>
Plug in the x- and y-values into the other original equation:
3x + 2y = -16
3(-4) + 2(-2) = -16
-12 + -4 = -16
-16 = -16 
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Answer: 15
Explanation:
4 + 3 + 6 + 2 = 15
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
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Answer:
0.5 and 2?
4
mph
1.5 and 2.5?
5
mph
Base on these results, the runner ran at a rate between 0.5 and 2 hours than between 1.5 and 2.5 hours.
slower
Step-by-step explanation:
