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3 years ago

2(3c+6)+7-5*1+2-1+9c=69+4c+5c

Mathematics

1 answer:

stich3 [128]3 years ago

7 0

Answer:

c = 9

Step-by-step explanation:

2(3c+6)+7−5×1+2−1+9c=69+4c+5c

Add 12 and 7 to get 19.

6c+19−5×1+2−1+9c=69+4c+5c

Multiply 5 and 1 to get 5.

6c+19−5+2−1+9c=69+4c+5c

Subtract 5 from 19 to get 14.

6c+14+2−1+9c=69+4c+5c

Add 14 and 2 to get 16.

6c+16−1+9c=69+4c+5c

Subtract 1 from 16 to get 15.

6c+15+9c=69+4c+5c

Combine 6c and 9c to get 15c.

15c+15=69+4c+5c

Combine 4c and 5c to get 9c.

15c+15=69+9c

Subtract 9c from both sides.

15c+15−9c=69

Combine 15c and −9c to get 6c.

6c+15=69

Subtract 15 from both sides.

6c=69−15

Subtract 15 from 69 to get 54.

6c=54

Divide both sides by 6.

c = 54/6

Divide :)

c = 9

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3 years ago

Amanda, Bruno and Carla collected bottle caps for charity. Amanda collected (4f – 3) bottle caps. Bruno collects twice as many b

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Answer:

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Step-by-step explanation:

Amanda, Bruno and Carla collected bottle caps for charity. Amanda collected (4f – 3) bottle caps. Bruno collects twice as many bottle caps as Amanda. Carla collects 3(5 + 2f) bottles. How many bottles did they collect altogether in terms of f ?

From the question

Amanda collected (4f – 3) bottle caps. Bruno collects twice as many bottle caps as Amanda.

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3 years ago

For each pair of points, find the slope of the line that passes through both points.

Georgia [21]

Step-by-step explanation:

a. (1,1) and (7,5)

b. (1,1) and (5,7)

c. (2,5) and (-1, 2)

d. (2,5) and (-7,-4)

Slope of the line that passes through the points

The slope = $\frac{y_{2} - y_{1} }{x_{2} - x_{1} }$

a. (1,1) and (7,5) ;

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slope = $\frac{2}{3}$

b. (1,1) and (5,7)

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c. (2,5) and (-1, 2)

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IRINA_888 [86]

Answer:

Step-by-step explanation:

You could talk about how how or low it goes.

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HOPE I HELPED.

PLZ give me a brainiest

GOOD LUCK

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