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enot [183]
3 years ago
13

What is 7x-1+6x-1=180? SHOW WORK!!!!!!

Mathematics
2 answers:
seropon [69]3 years ago
8 0
7x - 1 + 6x - 1 = 180

add the x’s, add the numbers

13x - 2 = 180

add 2 to 180

13x = 182

divide 182 by 13

x = 14
Rudiy273 years ago
4 0

Answer:

Step-by-step explanation:

7x -1 +6x -1 = 180, group like terms

7x+6x -1 -1 = 180, combine like terms

13x -2 = 180, add 2 to both sides

13x -2+2 = 180+2 , solve the additions

13x = 182, divide both sides by 13

13x/13 = 182/13, solve the divisions

x = 14

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12.5 feet long weighs 158 pounds. How much does a piece of the same steel pipe 18.75
AveGali [126]

Answer:

237 pounds

Step-by-step explanation:

237 pounds

4 0
3 years ago
A.) 170<br> B.) 300<br> C.)280<br> D.)155<br> Please help me
pav-90 [236]

Answer:

Step-by-step explanation:

The formula for this is

∠G = 1/2(arcEH - arcHF)

We have angle G (5x - 10) and we have arcEH (195) so we have to solve for x to find the measure of arcEHF so we can add arcEH + arcHF = arcEHF

Filling in the formula with what we have:

5x-10=\frac{1}{2}(195-(8x+17))

which simplifies down a bit to

5x-10=\frac{1}{2}(195-8x-17) which simplifies down a bit more to

5x-10=\frac{1}{2}(178-8x) Multiply both sides by 2 to get rid of the fraction and get:

2(5x - 10) = 178 - 8x which of course simplifies to

10x - 20 = 178 - 8x. Now add 8x to both sides and at the same time add 20 to both sides to get:

18x = 198 so

x = 11. Now we can find the measure of arcHF:

arcHF is 8x + 17, so arcHF is 8(11) + 17 which is 105°.

arcEH + arcHF = arcEHF so

195 + 105 = arcEHF so

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6 0
3 years ago
Sharon wants to buy a shirt that costs $55. The sales tax is 5%. How much is the sales tax? What is her total cost for the shirt
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easy

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8 0
3 years ago
Is the question asking to see if x = 1, y=-2, and z=2 by solving the three equations?
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Answer:

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6 0
2 years ago
What is the area of a circle with the diameter of 8
Mars2501 [29]
Area = πr^2
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5 0
3 years ago
Read 2 more answers
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