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earnstyle [38]
3 years ago
6

3y- 12x = 18 2y-8x= 12

Mathematics
2 answers:
timofeeve [1]3 years ago
8 0

the answers would be -4 for the first and for the second it would be 15
arlik [135]3 years ago
7 0

Answer:

x=0

y=6

Step-by-step explanation:

3y- 12x = 18

2y-8x= 12

rearrange the equation

2y-8x=12

add 8x to both sides

2y=8x+12

divide both sides by 2

y=4x+6

now substitute it into 3y-12x=18

3(4x+6)-12x=18

simplify

12x+18-12x=18

simplify

18=18

x=0

substitute to find y

2y-8(0)=12

2y=12

y=6

Recheck:

3(6)-12(0)=18

18=18

2(6)-8(0)=12

12=12

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If PQRS is a rhombus, find m
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Answer:

m<PQR = 82°

Step-by-step explanation:

In a Rhombus, the diagonals bisect its angles. This means that they divide each the four angles into two equal parts.

Therefore:

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Solve for x

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Collect like terms

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Plug in the value of x

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Question 45 A length of pipe that weighs 45 pounds is cut into two pieces. One of the pieces is 3 feet long and weighs 18 pounds
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Answer: 4.5 pounds.

Step-by-step explanation:

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