3 years ago

Write a proportion that you can use to convert 60 inches to centimeters. any answrs?

Mathematics

2 answers:

Nezavi [6.7K]3 years ago

8 0

How many centimeters in a inch?

1/2.54 = 60/x
2.54 * 60 = x
x= 152.40

valentina_108 [34]3 years ago

6 0

kids, why u cheating?

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$\left\{\begin{array}{ccc}2x+3y=134\\x+5y=179&|\text{subtract 5y from both sides}\end{array}\right\\\\\left\{\begin{array}{ccc}2x+3y=134\\x=179-5y&|\text{substitute to the first equation}\end{array}\right\\\\2(179-5y)+3y=134\qquad\text{use distributive property}\\\\(2)(179)+(2)(-5y)+3y=134\\\\358-10y+3y=134\qquad\text{subtract 358 from both sides}\\\\-7y=-224\qquad\text{divide both sides by (-7)}\\\\\boxed{y=32}\\\\\text{Put the value of y to the second equation}\\\\x=179-5(32)\\\\x=179-160\\\\\boxed{x=19}$

<h3>Answer: video tape cost $19 and DVD cost $32.</h3>

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