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3 years ago

9

Explain who to divide and multiply rational numbers

1 answer:

katrin [286]3 years ago

4 0

Answer: to divide rational numbers you turn the question to a multiplication problem by flipping the second rational number

Step-by-step explanation:

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Factor out the monomial: 18x^2 + 2

Trava [24]

Answer:

Step-by-step explanation:

18x² + 2 = 2 * 9x² + 2 *1

= 2*(9x² + 1)

4 0

2 years ago

Help me plzzzzzzzzz<br> solve for x

Svet_ta [14]

Answer:

$7) \frac{x+20}{x}=\frac{46}{30}$

$30(x+20)=46x$

$30x+600=46x$

$46x-30x=600$

$16x=600$

$x=75/2$

$x=37.5$

---------------------

$8) \frac{10}{3x+1} =\frac{22}{7x-1}$

$10(7x-1)=22(3x+1)$

$70x-10=66x+22$

$70x-66x=22+10$

$4x=32$

$x=\frac{32}{4}$

$x=8$

<u>---------------------</u>

hope it helps...

have a great day!!

4 0

3 years ago

The new post office has an area that is 6.5 times the area of the old post office. Let p represent the area of the old post offi

IrinaK [193]

Answer:

$Area = 6.5p$

Step-by-step explanation:

Given

$Area\ of\ Old = p$

$Area\ of\ New = 6.5 * Area\ of\ Old$

Required

Write an expression for the area of new post office

From the question, we have the following:

$Area\ of\ Old = p$

and

$Area\ of\ New = 6.5 * Area\ of\ Old$

Substitute p for Area of Old in the second equation

$Area\ of\ New = 6.5 * p$

$Area\ of\ New = 6.5 p$

Hence, the expression is:

$Area = 6.5p$

5 0

2 years ago

In the adjoining figure cross out dissimilar one and represent the set formed by following method

Over [174]

Answer:

cross out 4

Step-by-step explanation:

explanation

3 0

1 year ago

52.5% of what number is 25.83?

xxTIMURxx [149]

Given:
25.83 - part
52.5% percentage of the part against the whole

To get the whole number, we need to divide the part by its corresponding percentage.

25.83 ÷ 52.50% = 49.20

49.20 is the whole number wherein 25.83 represents 52.50% of it.

6 0

3 years ago