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Masja [62]
3 years ago
9

Multiply each equation by a constant that would help to eliminate the y terms.

Mathematics
1 answer:
goldenfox [79]3 years ago
6 0
6x-15y=-63
-15x+15y=90

This is because you are multiplying the first equation by a constant of 3 and the second equation by 5 so that you can have -15y and +15y which will cancel each other out.
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Lines a and b are parallel. What is the measure of angle s?
Arte-miy333 [17]

Answer:

Step-by-step explanation:

t = 158                         Corresponding angles

t + s = 180                   They are supplementary angles

158 + s = 180               Subtract 158 from both sides

s = 180 - 158

s = 22

As a note, all angles in this situation are either 158 or 22.

3 0
3 years ago
Hello, just need the answer for this question. Thank you for your help if you do so.
musickatia [10]

Answer:

In the first one you are missing (x - 3) so it will be 4(x - 3) and if you factor it out it will be 4x - 12

In the second one you are missing a (x -5)which means 9x(x -5) or when you factor it out it will be 9x^2 - 45x

Step-by-step explanation:

3x^2 -23x + 40 = (3x - 8) (x - 5)

3x^2 -17x + 24 = (3x -8) ( x - 3)

7 0
3 years ago
What is the simplified version of -4(8r + 3)
Whitepunk [10]

Answer:

-8-3

Step-by-step explanation:

-4(8r+3)

-32r-12

divide both sides by 4

-8-3

5 0
3 years ago
Read 2 more answers
If 15 women can finish a piece of work in 66 days, how long will 9 women take to finish the work?
Mice21 [21]

Answer:

39.6 Days. It is a proportions problem.

5 0
3 years ago
The price of a calculater has decreased from $200 to $150. What is the percentage of decrease?
Ivanshal [37]

Answer:

25%

Step-by-step explanation:

200-150=50

50/200=0.25

have a nice day!

5 0
3 years ago
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