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Tju [1.3M]
3 years ago
13

Gerald bought 3 shirts for 8.40 each, 2 shirts for 12.89 each, and one shirt for 18.90. What was the average cost of the shirts?

Mathematics
2 answers:
Vanyuwa [196]3 years ago
8 0
So first, you add all the numbers together

8.40*3=25.20
12.89*2=25.78
18.90*1=18.90
____________
$69.88

Divide the number of shirts: 6 by the total amount


69.88
_____ = $11.64666= $11.65 is your answer!
6
vagabundo [1.1K]3 years ago
3 0
Well if you did 3 multiplyed by 8.40 then 2 times 12.89 the add 18.90 you would get your answer. maybe 69.88
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Answer:

6%.

Step-by-step explanation:

We have been given that Tammy deposited $520 in the bank account that earns simple interest every year after 5 years she had earned $156.

To find the interest rate we will use simple interest formula.

I=P*r*T

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r=Annual interest rate (in decimal form).

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156=520*r*5

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Therefore, the annual interest rate was 6%.

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Standardising gives

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Answer:

I believe the answer is -17.

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