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1 year ago

Calculate: 31.13× 4.5

Mathematics

2 answers:

Dmitriy789 [7]1 year ago

5 0

Answer:

140.085

Step-by-step explanation:

Kitty [74]1 year ago

4 0

Answer:

140.08

Step-by-step explanation:

Hope it helped!

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What restrictions are there on the range of the function H(w) below?

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Question 1(Multiple Choice Worth 4 points)

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2 years ago

PLEASE HELP/ANSWER! From 1980 to 1990, Lior’s weight increased by 25%. If his weight was k kilograms in 1990, what was it in 198

Elena-2011 [213]

The weight in 1980 is $\frac{4k}{5}$ kilograms

Solution:

From 1980 to 1990, Lior’s weight increased by 25%

His weight is "k" kilograms in 1990

To find: weight in 1980

This is a percentage increase problem

Let "x" be the weight in kilograms in 1980

The percentage increase is given by formula:

$\text{Percentage increase } = \frac{\text{Final value - initial value}}{\text{initial value}} \times 100$

Here,

Initial value in 1980 = x

Final value in 1990 = k

Percentage increase = 25 %

Substituting the values in formula,

$25 = \frac{k-x}{x} \times 100\\\\25x = 100(k-x)\\\\x = 4(k-x)\\\\x = 4k - 4x\\\\5x = 4k\\\\x = \frac{4k}{5}$

Thus the weight in kilograms in 1980 is $\frac{4k}{5}$

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2 years ago

PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELPP MEEEEEEEEEEEEE I DO ANYTHING JUST HELP

loris [4]

Step-by-step explanation:

if 5s=3h

34s=?

we will criss cross and

5sx?=3h×34s

5s 5s

=19.5h

3 0

1 year ago

Calculate: 31.13× 4.5​

Calculate: 31.13× 4.5