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3 years ago

150=3/4t solve for t

1 answer:

6 0

Answer:

t = 200

Step-by-step explanation:

150 = 3/4t

3/4t = 150

t is being multiplied by 3/4 which equals 150 so in order to solve for t, you must divide 150 by 3/4

But first, convert 3/4 into a decimal

3/4 = 0.75

Second, divided 150 by 0.75 which equals t

t = 200

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3 years ago

If the first chapter of a certain book is 28 pages long and makes up 4% of the book, how many pages does the entire book have?

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Answer:

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Step-by-step explanation:

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3 years ago

Need help with math probelm if do 5 stars

slamgirl [31]

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2 years ago

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In 2002, Tim was twice as old as Sue. In 1997 the sum of their ages was 32. In what year will Sue's age be three-fourths Tim's a

xxMikexx [17]

Answer:

Year 2030.

Step-by-step explanation

In 1997, Let Tim's age = X years

In 1997, Let Sue's age = Y years

After 5 years in 2002, Tim's age = (X+ 5) years

After 5 years in 2002, Sue's age = (Y + 5) years

Now, According to question,

X + Y = 32 (sum of their ages) .......(1)

Y = 32 - X

(X + 5) = 2 (Y + 5) .......(2)

Substituting the value of Y in (2)

X + 5 = 2 (32 - X + 5)

X + 5 = 2 (37 - X )

X + 5 = 74 - 2X

3X = 69

X = 69/3 = 23

Now ∵ Y = 32 - X and X = 23

∴ Y = 32 - 23 = 9

So, In 1997, Tim's age = 23 years and Sue's age = 9 years.

Let the year in which Sue's age will be three-fourth times of Tim's age be t.

Sue's age after t years = (9 + t) years.

Tim's age after t years = (23 + t) years

According to question,

$(9 + t) = \frac{3}{4} \times(23 + t)$

$4 (9 + t) = 3 (23 + t)$

$36 + 4t = 69 + 3t$

$4t - 3t = 69 - 36$

$t = 33$

The Year in which Sue's age will be three-fourth times of Tim's age is:

= (1997 + 33) = 2030.

4 0

4 years ago