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alexandr1967 [171]
3 years ago
6

A home improvement store normally sells 20-foot extension ladders for $225. This week the ladders are discounted by 20%. What is

the sale price of the ladders? Please explain
Mathematics
1 answer:
Fantom [35]3 years ago
5 0

Answer:

The answer is 180

Step-by-step explanation:

So to start off you have to turn 20% into a decimal and that is .20.

Next  you need to mutiply 225 and .20 and you will get 45 (that means it is $45 off)

Subtract 45 fro 225 and that is your answer.

You now pay $180 for the 20 foot extension ladder.

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A 1 = 8, a 9 = 56
a 9 = a 1 + 8 d
56 = 8 + 8 d
8 d = 48
d = 6  ( common difference )
a 22 = a 1 + 21 d = 8 + 21 · 6 = 8 + 126 = 134


SO the answer is the 22nd term is 134

I really hope this helps!
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