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lana [24]
3 years ago
15

Susan swims a race in 29 7/10 seconds.patty swims at the race in 33 1/5 seconds. How much faster was Susan than patty

Mathematics
1 answer:
Lesechka [4]3 years ago
5 0

Answer: 3.5

Step-by-step explanation:  33.20-29.7

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The sum of two numbers a and b is 7 and the difference between them is 2. What is the value of a x b ? Give your answer as a mix
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Answer:

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Step-by-step explanation:

We can interpret the question to have two equation which can be solve simultaneously

a+b=7------------(1)

a-b=2------------(2)

From eqn(2) make a subject of formula

a=2+b--------(3)

Substitute the (3) into eqn(1)

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From equation (3) substitute value of b to find a

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a= 2+5/2

a=9/2

Then What is the value of a x b ?

9/2× 5/2

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