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IrinaK [193]
3 years ago
12

NEED HELP ASAP!!!!!!!!!

Mathematics
1 answer:
Step2247 [10]3 years ago
6 0
ANSWER

16

Explanation: all angles are 60 which is an Equilateral triangle meaning all three sides of the triangle are equal.
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Use the elimination method to solve this system.
leva [86]

Answer:

The solution for this system is: x = -1, y = 1

Step-by-step explanation:

The problem states that we have to solve this system by the elimination method

In the elimination method, we transform the system in such a way that one variable can cancel each other. With this, we find the result of the other variable. Then, we can replace the variable we found in any of the equations, and we have the value of the variable that we had initially canceled.

In this problem, we have the following system:

1) -6x + 5y = 1

2) 6x + 4y = -10

If we add equations 1) and 2), the variable x is going to be eliminated

1) + 2)

-6x + 6x + 5y + 4y = 1 - 10

9y = -9

y = \frac{-9}{9}

y = -1

Now, we can replace the value of y in any of the equations, to find x:

I will replace in equation 2)

6x + 4y = -10

6x + 4(-1) = -10

6x = -6

x = \frac{-6}{6}

x = -1

The solution for this system is: x = -1, y = 1

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2 years ago
If Angle 8 is congruent to angle 10 and Angle 1 is congruent to angle 7, which describes all the lines that must be parallel? Li
NISA [10]

Answer:

C

Step-by-step explanation:

Since they are crossing with each other they're not necessarily parallel with everything but instead themselves.

4 0
2 years ago
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Ram and his sister Kalpana win a prize of Rs 2000. They decide to share the prize in the ratio of their ages. Ram is 15 years ol
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9514 1404 393

Answer:

  • Ram -- ₹1200
  • Kalpana -- ₹800

Step-by-step explanation:

Their age total is 15+10=25, so Ram will get 15/25 = 0.6 of the total. Kalpana will get the remaining 0.4 of the total.

  Ram receives 0.6 × ₹2000 = ₹1200

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8 0
2 years ago
The incomplete work of a student to solve an equation is shown below:
Dvinal [7]
Answer: 4x = -8

Reasoning:
Multiply both sides by 4
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Ciara is making a new dance outfit for a dance performance in her high school. She needs 2 1/2 yards of fabric for the shawl. Sh
sergey [27]

Answer:

1 1/4 yards of fabric

Step-by-step explanation:

2 1/2+ 1 3/4=4 1/4

4 1/4 - 3 = 1 1/4

8 0
3 years ago
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