3 years ago

F - 3/4 = 1/2 what is f?

Mathematics

2 answers:

Julli [10]3 years ago

3 0

Answer:

f=5/4

Step-by-step explanation:

f=1/2+3/4

f=(1/2)×2+3/4

f=2/4+3/4

f=5/4

Darina [25.2K]3 years ago

3 0

Answer:

f=5/4

Step-by-step explanation:

step1:Simplify both sides of the equation

step2: Add 3/4to both sides

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3 years ago

Marc is half as old as Tony and three times as old as Ben. If the sum of their ages is 40, how old is Marc?

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Marc's age is 12

Step-by-step explanation:

Let

x ----> Marc's age

y ---> Tony's age

z ---> Ben's age

we know that

the sum of their ages is 40

$x+y+z=40$ -----> equation A

Marc is half as old as Tony

$x=\frac{y}{2}$

$y=2x$ ----> equation B

Marc is three times as old as Ben

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substitute equation B and equation C in equation A

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3 years ago