2 years ago

309,099,990 expanded form

Mathematics

2 answers:

Marrrta [24]2 years ago

5 0

Three hundred nine million ninety nine thousand nine hundred and ninety.

storchak [24]2 years ago

5 0

300,000,000+9,000,000+90,000+9,000+900+90

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If Aldo puts 400 into a savings account that paid an interest rate of 5.4 percent What was the total amount in his account at th

Ne4ueva [31]

Answer:

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Step-by-step explanation:

we know that

The simple interest formula is equal to

$A=P(1+rt)$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=1\ year\\ P=\$400\\ A=?\\r=5.4\%=5.4/100=0.054$

substitute in the formula above

$A=400(1+0.054*1)$

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$A=\$421.60$

Remember that Interest is equal to

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$I=\$421.60-\$400=\$21.60$

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Step-by-step explanation:

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3 years ago

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Answer:

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