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September 2, 2015

Homework Help: MATH

Posted by deborah on Monday, December 3, 2012 at 2:56pm.

Use cross products to see if each pair of ratios forms a proportion. Replace each box with = or ≠.
1.
seven-fifths and fifteen-tenths (

=


2.
six-eighths and fifteen-twentieths

=



Solve each problem.
3.
two-thirds equals twelve over x

x = 18
x = 12
x = 36
x = 8

4.
six-elevenths equals eighty-four over x

x = 40
x = 120
x = 254
x = 154

5.
twenty-two miles over fifty-five hours equals twelve miles over h hours

48
30
45
22

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