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garri49 [273]
3 years ago
13

Simplify (2n + 5) - (3n + 7) + (4n - 9). -3n - 11 3n - 11 -3n + 11 3n + 11

Mathematics
1 answer:
Natasha2012 [34]3 years ago
3 0

Answer:

(B) 3n - 11

Step-by-step explanation:

(2n + 5) - (3n + 7) + (4n - 9) = 2n + 5 - 3n - 7 +4n - 9 = 3n  - 11

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Which of the following number lines models the expression -5 + 6?​
Fofino [41]
A because it equals 1 and it goes up.hope this helps :)
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3 years ago
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Write an equation for the line that is parallel to the glven line and that passes
Wewaii [24]

Answer:

The answer to your question is  y = x - 23

Step-by-step explanation:

Process

1.- Get the slope of the line

If two lines are parallels, it means that they have the same slope.

                                 y = 1x - 10

Slope = m = 1

2.- Get the equation of the line

                               y - y1 = m(x - x1)

                               y + 29 = 1(x + 6)                 Substitution

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                               y = x + 6 - 29                      Simplifying

                               y = x - 23

4 0
3 years ago
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A club raised 175% of its goal for a charity. The club raised $763. What was the goal?
IceJOKER [234]

Answer: The clubs goal is to raise  $436.

Step-by-step explanation:

175%  * x  = 763     where x is the goal  

1.75 *x  = 763

1.75x = 763

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3 0
3 years ago
The actual length of side y is 22cm. Use the scale drawing to find the length of side x.
kozerog [31]

Given:

The actual length of side y is 22cm.

To find:

The length of side x by using the scale drawing.

Solution:

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\dfrac{x}{1.8}=\dfrac{y}{1.4}

\dfrac{x}{1.8}=\dfrac{22}{1.4}

x=\dfrac{22}{1.4}\times 1.8

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Therefore, the length of side x is about 28.286 cm.

8 0
3 years ago
If 90 percent of a is 44, what is 30 percent of 3a?
Lesechka [4]
90% of "a" is 44.......turn ur percent into a decimal...." of " means multiply..." is " means equals...

0.90a = 44...divide both sides by 0.90
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a = 48.89.....this is rounded

what is 30% of 3a.....and we know that "a" is 48.89...

0.30(3 * 48.89) = 0.30(146.67) = 44 <=== ur answer
3 0
3 years ago
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