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Neko [114]
3 years ago
15

At the market, 5 light bulbs cost $9. How much do 7 light bulbs cost?

Mathematics
2 answers:
Naddik [55]3 years ago
8 0

Answer:

\boxed{$12.60}\boxed{12.60}

Step-by-step explanation:

<em>Hey there!</em>

<u>                                                               Given                                                        </u>

5 light bulbs = $9

__________________________________________________________

9 ÷ 5 = 1.8

Each light bulb is 1.8

To check do 1.8 • 5 = 9

Now we have cost per light bulb, do

7 • 1.8

= <u>$12.6 for 7 light bulbs</u>

<em>Hope this helps :)</em>

lidiya [134]3 years ago
3 0

Answer:

$12.60

Step-by-step explanation:

find unit price first

9÷5

1.8×7

12.6

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