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14-08-2017
Mathematics

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A pencil and a ruler cost 2.50 together. The ruler costs $1.00 more than the pencil. How much is the pencil

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texaschic101 texaschic101

14-08-2017

p + r = 2.50
r = p + 1

p + p + 1 = 2.50
2p + 1 = 2.50
2p = 2.50 - 1
2p = 1.50
p = 1.50/2
p = 0.75 <=== pencil cost 75 cents

r = p + 1
r = 0.75 + 1
r = 1.75 .....ruler cost 1.75

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justme23748 justme23748

14-08-2017

1.75 should be correct by basics of mathematics

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