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2 years ago

Need help please ASAP

Mathematics

2 answers:

aivan3 [116]2 years ago

7 0

Answer:

B.)8ft

Step-by-step explanation:

Set up a proportional to the roof slope:

2/5 = x/20

Cross multiply:

40/5 = 5x/5

x=8ft

SVETLANKA909090 [29]2 years ago

6 0

Answer: B) 8 ft

Step-by-step explanation:

$\frac{2}{5}*\frac{4}{4} =\frac{8}{20}$

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135 + 2x
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135 + 30 (or 2 x 15) = 165
11 x 15 = 165

16 times.

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2 years ago

. On a week-day paper route, Jennifer delivers the following number of papers in one week. What is the median number of papers t

Kobotan [32]

Answer:

Step-by-step explanation:

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7 0

2 years ago

Need help ASAP, due today.

Finger [1]

Q.17)

$(-\frac{12}{25})\frac{15}{32} = (-\frac{3}{5}) \frac{3}{8}=-\frac{9}{40}$

Q.18

$(-\frac{3}{5})(-\frac{1}{3})=(\frac{1}{5})(\frac{1}{1})=\frac{1}{5}$

Q.19

$(-\frac{4}{7})(-\frac{1}{20})=(\frac{1}{7})(\frac{1}{5})=\frac{1}{35}$

Q.20

$(3\frac{1}{3})(\frac{1}{4})=(\frac{10}{3})(\frac{1}{4})=(\frac{5}{3})(\frac{1}{2})=\frac{5}{6})$

Q.21

$(4\frac{1}{4})(3\frac{1}{3})=(\frac{17}{4})(\frac{10}{3})=(\frac{17}{2})(\frac{5}{3})=\frac{85}{6}$

For the 17 times 5 part, a easy way to do it is to times 17 by 10, then divide by 2. (since 5 = 10 divided by 2)

So 17 x 10 = 170

170 / 2 = 85

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If you have any questions, don't hesitate to ask : )

6 0

3 years ago

This equation has one solution. 5(x – 1) + 3x = 7(x + 1) What is the solution?

bogdanovich [222]

Open up the brackets
$5x - 5 + 3x = 7x + 7$
Collect like terms
$5x + 3x - 7x = 7 + 5$
Simplify
$8x -7x = 12$
$x = 12$
Therefore, your answer is 12.

5 0

3 years ago

Read 2 more answers

3m=2(4+x) solve for x

algol13

Simple.........

3m=2(4+x)

Simplify...

3m=2(4+x)

3m=8+2x

Isolate the variable....

3m=8+2x
-8 -8

3m-8=2x

$\frac{3m-8}{2} = \frac{2x}{2}$

$\frac{3m}{2} -4=x$

Thus, your answer.

4 0

2 years ago

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