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3 years ago

Sam can prepare 30 wall paintings in four weeks.How much time will he need to do 90 wall painting s

1 answer:

8 0

Sam needs 12 weeks.

explanation: if he can do 30 paintings in 4 weeks then find out if 30 can go into 90. since it can when you multiply it by 3, then also multiply 4 by 3 since he needs 3 times more than the original amount. in total, he will need 12 weeks

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Step-by-step explanation:

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3 years ago

Monthly sales of a particular personal computer are expected to decline at the following rate of S'(t) computers per month, whe

Len [333]

Answer:

$S(t) = -18t^\frac{5}{3}+2440$

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Step-by-step explanation:

Given function that shows the change rate of computers,

$S'(t)=-30 t^{\frac{2}{3}}$

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On integrating,

$\int S'(t) = -30\int t^{\frac{2}{3}} dt$

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$S(t) = -30(\frac{t^\frac{5}{3}}{\frac{5}{3}})+C$

$S(t) = -30(\frac{3t^\frac{5}{3}}{5})+C$

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According to the question,

S(0) = 2,440,

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Hence, the required function,

$S(t) = -18t^\frac{5}{3}+2440$

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3 years ago

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3 years ago

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2 years ago

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skelet666 [1.2K]

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3 years ago

Sam can prepare 30 wall paintings in four weeks.How much time will he need to do 90 wall painting s​

Sam can prepare 30 wall paintings in four weeks.How much time will he need to do 90 wall painting s