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Briii582
25.07.2019 •
Mathematics
Solve the following a bat and one ball cost one dollar and ten cents. the bat costs one dollar more than the ball. how much does the ball cost? inappropriate answers will be
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Ответ:
bat = a
ball = b
a = b + 1
a + b = 1.10
plug in b + 1 for a
(b + 1) + b = 1.10
Simplify
b + b + 1 = 1.10
2b + 1 = 1.10
isolate the b
subtract 1 from both sides
2b + 1 (-1) = 1.10 (-1)
2b = 0.10
divide 2 from both sides
2b/2 = 0.10/2
b = 0.10/2
b = 0.05
Plug in 0.05 for b into one of the equations
a = b + 1
a = 0.05 + 1
a = 1.05
bat = $1.05
ball = $0.05
hope this helps
Ответ:
105ft
is the anwser to the question