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Reptile [31]
3 years ago
15

9y - 2= 5(2y + 4) UGHHHHHH!

Mathematics
2 answers:
jonny [76]3 years ago
5 0

9y-2= 5(2y+4)

9y-2= 10y+20

9y-10y-2= 10y-10y+20

-y-2= 20

-y-2+2= 20+2

-y= 22

Multiply by -1 for -y and 22

-y(-1)= 22(-1)

y= -22

Answer is y= -22

hammer [34]3 years ago
3 0

Answer:

y = -22

Step-by-step explanation:

9y - 2= 5(2y + 4)

9y - 2 = 10y + 20

-22 = y

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3 years ago
Read 2 more answers
camille invested $3000 into an account that earned annual simple interest. she made no deposits or withdrawals, and after 9 yrs,
KonstantinChe [14]

Answer:

6.5 %  

Step-by-step explanation:

The simple interest formula is

I = Prt

Data:

I = $1755

P = $3000

t = 9 yr

Calculation:

1755 = 3000 × r × 9

1755 = 27 000 r

Divide each side by 27 000

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The annual percentage rate was 6.5 %.

8 0
3 years ago
How much is the final cost of my $29,990 car at 6.5%
zheka24 [161]

The period required to pay for the car is not given. However let us assume this interest rate of 6.5% is per annum, on simple interest  terms.

I= PRT

where I is the interest accrued, P is the principal, R is the rate and T is the time.

If the car is paid for in one year then the final cost will be:

I = 29990 × 6.5% × 1

6.5% must be expressed as a decimal fraction so  we divide by 100 to get 0.065

I= 29990 × 0.065 × 1

I = 1,949.35

29990 + 1949.35 =  31939.35 dollars.

If the car is paid for in five years on simple interest terms then the final cost will be :

I = 29990 × 0.065 ×5 = 9,746.75

29990 + 9.746.75 =  39,736.75 dollars


7 0
3 years ago
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