Question

Thank You i got it right.

Solve the proportion using cross products. Round to the nearest hundredth if necessary.
3.7/2.4 = y/8.2
a) 10.56
b) 14.80
c) 12.64
d) 5.32

Answer 1

c) 12.64

Explanation:

`(3.7)/(2.4)=(y)/(8.2)`

`=(y)/(8.2)=(3.7)/(2.4)`

`\mathrm{Multiply\:both\:sides\:by\:}8.2`

`(8.2y)/(8.2)=(3.7\cdot \:8.2)/(2.4)`

`(8.2y)/(8.2) =y`

`(3.7\cdot \:8.2)/(2.4)`

`=(30.34)/(2.4)`

`=12.64166\dots`

Which is 12.64 in the nearest.