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lubasha [3.4K]
4 years ago
9

Is 9x-3y=12 and 27x+9y=38 parallel or perpendicular

Mathematics
1 answer:
Leona [35]4 years ago
5 0

Answer:

1

Step-by-step explanation:

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Which equation can be used to solve for x in the parallelogram below?
densk [106]

Answer:

B. (3x - 12)° = (2x + 8)°

Step-by-step explanation:

This equation can be used to solve x.

3x - 12 = 2x + 8

3x - 2x = 12 + 8

x = 20°

-------------------------------------------------------------------

Verification:

3(20) - 12 = 2(20) + 8

60 - 12 = 40 + 8

48° = 48°

6 0
3 years ago
The average of the first 3 numbers was 28. The average of the next 12 numbers was 38. What was the overall average of the number
Alexxx [7]

Answer:

ther overall average would be 36

Step-by-step explanation:

4 0
3 years ago
Can somebody help me/tell me how to do these?
andreyandreev [35.5K]

Hi! I'll try to help

It gives you two equations, one for "x" and one for "y"

All you have to do is replace the variable "y" with its value in the second equation. Might be kind of confusing so let's do one.

y=4x

3x-y=1

Since we know that "y" is the same as 4x, you can rewrite the equation as

3x-4x=1

Next, all you have to do is combine like terms as solve "3x-4x" which is -x

Let's rewrite the equation, then:

-x=1

You can simplify it to

x=-1

by dividing both sides by negative one, in other words swapping the negative sign so that "x" is positive

7 0
2 years ago
How do you find the answer to 2 yards equals how many inches?
Elodia [21]

Answer:

Step-by-step explanation:

the answer is 72 inches since mostly yards are 3 feet long its 6 feet converted to inches and the way u do that is 6 times 12

4 0
3 years ago
Read 2 more answers
Dave's team scored 73 points.Steve's team scored 58 oints.how many more points did Dave's team scored than Steve's team?
kati45 [8]
Dave's team scored 15 more points than Steve's.
5 0
3 years ago
Read 2 more answers
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