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2 years ago

I need help fast what is 9m−(3+7m) simplified?

Mathematics

1 answer:

iogann1982 [59]2 years ago

4 0

Answer:

Simplifying 9m + -3 + -7m = 0

Reorder the terms: -3 + 9m + -7m = 0

Combine like terms: 9m + -7m = 2m -3 + 2m = 0 Solving -3 + 2m = 0

Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right.

Add '3' to each side of the equation. -3 + 3 + 2m = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 2m = 0 + 3 2m = 0 + 3 Combine like terms: 0 + 3 = 3 2m = 3

Divide each side by '2'. m = 1.5

Step-by-step explanation:

Hope this helps :)

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2 years ago

How do i find the volume of these similar solids? round to the nearest tenth HELP

FromTheMoon [43]

Answer:

The volume of the larger solid is $592.6\ mm^3$

Step-by-step explanation:

<u><em>The question is</em></u>

If these solids are similar, find the volume of the larger solid

step 1

Find the scale factor

we know that

If two solids are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

Let

x ----> the height of the larger solid in mm

y ----> the height of the smaller solid in mm

z ---> the scale factor

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

we have

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substitute

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step 2

Find the volume of the larger solid

we know that

If two solids are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

x ----> the volume of the larger solid in cubic millimeters

y ----> the volume of the smaller solid in in cubic millimeters

z ---> the scale factor

$z^3=\frac{x}{y}$

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substitute the values

$(\frac{4}{3})^3=\frac{x}{250}$

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3 years ago

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Nadusha1986 [10]

Add the three different amounts she gets to find the total:

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1250 is greater than 1200, so yes, she is getting enough.

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3 years ago

Read 2 more answers

Evaluate t-u/v, when t=-1,u=-3 and v=1/2

mars1129 [50]

Answer:

Step-by-step explanation:

t-u/v

substitute (-1) - (-3)/(1/2)

divide (-1) - (-6)

simplify (-1) + 6

add 5

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2 years ago

I need help fast what is 9m−​(3+7​m) simplified?

I need help fast what is 9m−(3+7m) simplified?