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3 years ago

Evaluate when a = 8 and b = 4. ab^2 a−b

Mathematics

1 answer:

eduard3 years ago

3 0

<span>Evaluate when a = 8 and b = 4.

ab^2
a−b

ab² = (8)(4)² = 8*16= 128

a - b = 8 - 4 = 4 </span>

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Larry Mitchell invested part of his $36,000 advance at 7% annual simple interest and the rest at 2% annual simple interest. If h

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The amount invested at each rate

Investment at 7% = $25000

Investment at 2% = $11,000

<h3>What is investment?</h3>

Investment definition is an asset acquired or invested in to build wealth and save money from the hard earned income or appreciation.

Given:

Larry Mitchell invested = $36,000 at 7% annual simple interest

the rest at 2% annual simple interest.

Total investment = 36000

let the investment at 7% is x

then, invested at 2% = 36000 - x

Total interest earned = $1,970

Simple interest = principal * rate * time

Investment at 4%:

(x * 0.07) + [(36000 - x) * 0.02] = 1970

0.07x + 720 - 0.02x= 1970

0.05x = 1970-720

0.05x = 1250

x= 25000

Hence,

Investment at 7% = $25000

Investment at 2% = $36,000 - $25000 = $11,000

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Max spends three times as long on his math homework than he does on his science homework. If he spent total of 64 minutes on mat

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Answer:

y = -2x + 1.

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