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2 years ago

When 0.3(4x – 8) – 0.5(–2.4x + 4) is simplified, what is the resulting expression?

Mathematics

1 answer:

andrew11 [14]2 years ago

8 0

Answer:

2.4x - 4.4

Step-by-step explanation:

0.3(4x – 8) – 0.5(–2.4x + 4)

1.2x - 2.4 + 1.2x -2

2.4x - 4.4

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15, 120

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3 years ago

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2 years ago

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2 years ago

Read 2 more answers

After four years in college, Josie owes $21000 in student loans. The interest rate on the federal loans is 3% and the rate on th

klasskru [66]

Answer:

$104.27 is the amount at 3% and $20895.73 is the amount at 4.4%

Step-by-step explanation:

We are given that Josie owes $21000 in student loans.

Let x be principal at 3% rate of interest

Time = 1 year

Formula: $A=P(1+r)^t$

$A=x(1+0.03)^1$

A=1.03x

Interest = Amount - Principal

Interest = 1.03x-x=0.03x

So, (21000-x) is the principal at 4.4% rate of interest

Formula: $A=P(1+r)^t$

$A=(21000-x)(1+\frac{4.4}{100})^1$

A=21924-1.044x

Interest = 21924-1.044x-21000-x=924-2.044x

The total interest she owes for one year was $714.00

So, 0.03x+924-2.044x=714

x=104.27

So, $104.27 is the amount at 3%

The principal at 4.4% rate of interest =21000-x=21000-104.27=20895.73

Hence $104.27 is the amount at 3% and $20895.73 is the amount at 4.4%

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2 years ago