bealhomeschool bealhomeschool

01-03-2017
Mathematics

contestada

What is the value of 5a+2(a+b)5a+2(a+b) when a = 4 and b = 2?

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safa123 safa123

01-03-2017

5(4)+2(4+2)5(4)+2(4+2)
20+8+4+20+8+4
32+20+12
52+12
64

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cetnarowski cetnarowski

01-03-2017

The answer is 276. 5x4+2(4+2)x5x4+2(4x2) = 276.

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solve: y=-3x+5 5x-4y=-3

If you walked at an average speed of 102 m/s, how long would it take to cross a road that is 16-m wide?