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Aneli [31]
3 years ago
10

6(1 + 3R) = 2(10R - 9) -4R

Mathematics
1 answer:
Damm [24]3 years ago
5 0

Answer:

R=-12

Step-by-step explanation:

6(1 + 3R) = 2(10R - 9) -4R

Distribute 6 through the parentheses

6+18R=2(10R-9)-4R

Distribute 2 through the parentheses

6+18R=20R-18-4R

Collect like terms

6+18R=16R-18

Move the variable to the left-hand side and change its sign

6+18R-16R=-18

Move the constant to the right-hand side and change its sign

18R-16R=-18-6

Collect like terms

2R=-18-6

Calculate the difference

2R=-24

Divide both sides of the equation by 2

R=-12

if you'd make me brainliest that'd be great, if not its ok as well! I hope this helped!!!

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Step-by-step explanation:

I just learned this in class lol

Find the area of all the sides.

This cubiod has 6 sides.

6 x 5 = 30

6 x 5 = 30

4 x 5 = 20

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30 + 30 + 20 + 20 + 24 + 24 = 148

Thefore, the surface area of this cuboid is 148.

Hope this helps! If it did, please mark it as brainliest! It would help a lot! Thanks! :D

8 0
3 years ago
Find the measure of the remote exterior angle. <br> m∠x=(5n−19)°<br> m∠y=(n+7)°<br> m∠z=(144−6n)°
navik [9.2K]

Answer:

66°

Step-by-step explanation:

An exterior angle of a triangle is equal to the sum of the opposite interior angles.

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n = 13

m∠z = (144−6n)°

m∠z = (144−6×13)°

m∠z = 66°

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4 years ago
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attashe74 [19]
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Answer:

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Step-by-step explanation:

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