3 years ago

If 2 objects cost 40 dollars how much would 7 objets cost?

Mathematics

2 answers:

alexira [117]3 years ago

8 0

Answer:

$140

Step-by-step explanation:

We can use a ratio to solve

2 objects 7 objects

---------------- = --------------

$40 x dollars

Using cross products

2 *x = 40 *7

2x = 280

Divide each side by 2

2x/2 =280/2

x = 140

7 objects cost 140 dollars

arlik [135]3 years ago

6 0

Answer:

140

Step-by-step explanation: 20X7=140

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