Answer:
74+32x
Step-by-step explanation:
2+8(9+4x)
2+(72+32x)
74+32x
9514 1404 393
Answer:
V ≈ 154.1 in³
Step-by-step explanation:
Use the formula for the volume of a cone:
V = (1/3)πr²h
V = (1/3)π(4.4 in)²(7.6 in) ≈ 49.045π in³
V ≈ 154.1 in³
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<em>Additional comment</em>
If you use 3.14 for π, your result will be 154.0 in³.
Answer:
(3, 1 )
Step-by-step explanation:
Given the 2 equations
x + 2y = 5 → (1)
3x + 5y = 14 → (2)
Rearrange (1) expressing x in terms of y by subtracting 2y from both sides
x = 5 - 2y → (3)
Substitute x = 5 - 2y in (2)
3(5 - 2y) + 5y = 14 ← distribute and simplify left side
15 - 6y + 5y = 14
15 - y = 14 ( subtract 15 from both sides )
- y = - 1 ( multiply both sides by - 1 )
y = 1
Substitute y = 1 into (3) and evaluate for x
x = 5 - (2 × 1) = 5 - 2 = 3
Solution is (3, 1 )
The books are $16 each. To figure this problem out you have to start with the facts: Benny has $124, he buys seven books, then ends up with $12 left. So first subtract 12 from 124. That equals 112. Next divide 112 by 7, when you do that is comes out to the answer of 16! So $16 is the answer.