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29-11-2017
Mathematics

contestada

Each week, Christian earns $x fixing bicycles and receives $10 as his allowance. To find how much he will earn in total over 2 weeks, Christian calculates: x + 10 + x + 10. What is another way Christian can calculate how much he will earn in total over the 2 weeks?

A.x + 10

B.2x + 10

C.x + 20

D.2(x + 10)

Respuesta :

29-11-2017

d=2(x+10)
because 2 times x = 2x and 2 times 10 = 20

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