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5x + 60y = 35
x +y = 1.5 : rewrite as x = 1.5-y and substitute this formula for x in the first one:
5(1.5-y) + 60y = 35
distribute:
7.5 - 5y + 60y = 35
combine like terms:
7.5 + 55y = 35
subtract 7.5 from both sides:
55y = 27.5
divide both sides by 55 to solve for y
y = 27.5 / 55 = 0.5
now substiute 0.5 for y in the 2nd equation:
x + 0.5 = 1.5
x = 1.5 - 0.5 = 1
he walked for 1 hour
1/2 = 2/4 = 3/6,4/8,5/10,6/12,7/14, etc.
Add 1 to the numerator. Add 2 to the denominator.
Answer:
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Step-by-step explanation:
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Answer:
9/40?
Step-by-step explanation:
