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aleksandrvk [35]
3 years ago
9

The sum of the ages of Andrew and Hanna is 64 years. 8 years ago, Andrew's age was 3 times Hanna's age. How old is Andrew now?

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
8 0

Answer:

44yrs

Step-by-step explanation:

sum= 64

8yrs ago

Hanna =  x - 8

Andrew =3x - 8

sum 8yrs ago

64 - <u>8</u> - <u>8</u>    =   48 yrs

       |      \

Hanna's    Andrew's

3x + x = 48

<u>4x</u> = <u>48</u>

4      4

x = 12

Andrew = 3x = 3 x 12 = 36( 8 yrs ago)

       now = 36 + 8 = 44yrs

Hanna's = x = 12(8 yrs ago)

   now = 12 + 8 = 20yrs

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One pint is equivalent to 0.473 liters which is approximately 0.47 liters if rounding off nearest to hundredth decimal places and 0.5 liters if rounding off nearest to tenth places.

Further explanation:

Jules reads that one pint is equivalent to 0.473 liters.

1\,\,{\text{Pint}}=0.473\,\,{\text{liters}}

But according to his teacher, one pint is about 0.47 liters.

1\,\,{\text{Pint}}\approx0.47\,\,{\text{liters}}

His teacher round off a value of one pint in liters nearest to hundredth places.

Also according to his parents, one pint is about 0.5 liters.

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Therefore, his parents and teachers are both right approximately.

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Learn more:

1. Write an algebraic expression for the following word phrase the quotient of r and 12 brainly.com/question/1600376

2. 9 ten thousands ÷ 10 in unit form brainly.com/question/4786449

3. What is the value of the digit 4 in the number 84 230 brainly.com/question/106975

Answer details:

Grade: Middle School

Subject: Mathematics

Chapter: Decimal system

Keywords: Hundredth, pint, decimal places, liters, teacher, approximately, divisor, kg, share, rounding off

3 0
3 years ago
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