A 2/3 pi x ^2 is the best choice
Answer:
15
Step-by-step explanation:
x/2 + 6 / 3 = 4.5
x/2 + 6 = 4.5 *3
x/2 = 13.5 - 6
x = 7.5 * 2
x = 15
Hope u understnad.
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x + 2y = 9
x + 3y = 13
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Solve for x in the first equation. Subtract 2y from both sides.
x = 9 - 2y
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Plug x into the second equation.
(9 - 2y) + 3y = 13
Combine like terms.
9 + y = 13
Subtract 9 from both sides.
y = 4
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Plug y back into the first equation.
x + 2(4) = 9
x + 8 = 9
Subtract 8 from both sides.
x = 1
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x = 1
y = 4
Answer:
A
Step-by-step explanation:
to solve this problem, we can use the proportion method,
x /40 = 150/1
cross multiply
x (1) = (150)(4)
x = 600
Answer:
3 times 7 = 21
Step-by-step explanation: