isabella129313 isabella129313

22-04-2019
Mathematics

contestada

Noah bought 15 baseball cards for $9.00.Assuming each baseball cards costs the same amount, how much will 12 baseball cards cost ?

Respuesta :

TheBreeze TheBreeze

24-04-2019

First, we find how much 1 baseballs card costs.

1 card = 0.60

12*0.6 = $7.20

Answer Link

ummuabdallah ummuabdallah

10-12-2019

Answer:$7.20

Step-by-step explanation: Using the idea of proportion

15 base ball cost $9.00

12 base ball cost $x

i.e

15= $9.00

12 = $x

Then we cross multiplied

15 × x = 12 × $9.00

15 × x = $108

Then we divide bothside by 15

x = $105/15

x = $7.2

Answer Link

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