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gavmur [86]
3 years ago
15

Milley wants to solve the following equations using the method of elimination:

Mathematics
1 answer:
timurjin [86]3 years ago
3 0
She should multiply y = x - 2 by -4...that way one x will be -4x and the other will be 4x   and they will cancel out when added.

answer is -4
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What is the exact value of tan 202.5 degrees
defon

Answer:

7.49001583795

Step-by-step explanation:

Use a calculator to solve this question. Plug in tan (202.5) The answer is 7.49001583795

If this answer is correct, please make me Brainliest!

8 0
3 years ago
This is a linear equation/ graph quiz ! please help , my teacher makes no sense to me!
JulijaS [17]

Answer:

(8,5)

Step-by-step explanation:

5x - 2y = 30

coordinates are (x,y) so you plug in 8 for x and solve for y

5(8) - 2y = 30

40 - 2y = 30

subtract 40 from both sides to isolate y

-2y = -10

divide both sides by -2 to isolate y

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6 0
3 years ago
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Whats the step by step answer to this equation i got -25 but its supposed to be positive not negative
andreev551 [17]

Answer:

25

Step-by-step explanation:

  • - 6/5x = -30               ⇒ multiply both sides by -1
  • 6/5x = 30                  ⇒ multiply both sides by 5
  • 6x = 5*30
  • x = 150/6                   ⇒ divide both sides by 6
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6 0
3 years ago
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A simple impact crater on the moon has a diameter of 15 kilometers. a complex impact crater has a radius of 30 kilometers. how m
timurjin [86]
The general equation for computing the circumference of a circle is C=\pi d, where C is the circumference, and d is the diameter. (You might also see the equation as C=2 \pi r where r is the radius, because d=2r)

Computing the circumferences of the two circles, we get:
C_{d=15}=\pi (15)=15\pi
C_{d=30}=\pi (30)=30\pi.

To calculate the ratio of two numbers, we can divide one by the other. You can look at this as "How many times does the denominator fit in the numerator?"
\frac{C_{d=30}}{C_{d=15}}=\frac{30\pi}{15\pi}=2
So the circumference of the complex impact crater is 2 times greater than the circumference of the simple impact crater.
7 0
3 years ago
What is 5 x 3/4 and please give me your simplest answer
lord [1]

Answer:

15/4

Step-by-step explanation:

5 0
3 years ago
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