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3 years ago

Line R: 2x + 2y = 18 Line M: x + y = 9 Which statement is true about the solution to the set of equations?

Mathematics

1 answer:

Pie3 years ago

7 0

Answer:

Step-by-step explanation:

2x + 2y = 18

-2x -2y = -18

0 = 0

infinite solution of equations

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1. Using the drawing, if the measure of angle 2 is 42° and the measure of angle 3 is 52°, what is the measure of angle 6?

Ann [662]

first is 86

we know because of the sum of the interior angles of a triangle being 180, and that 5 + 6 =180

4 0

3 years ago

Read 2 more answers

Solve the percent equation. 646 is what percent of 340?

ella [17]

646 is 190% of 340

Simply do the following,

1) divide,

$646 \div 340 = 1.9$

2) multiply the above answer by 100

$1.9 \times 100 = 190$

3) dock on that percent sign,

$190\%$

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I hope that helps you out!!

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4 0

3 years ago

What is the answer

Igoryamba

Answer:

∠B = 60°

Step-by-step explanation:

They are supplementary angles, which means they add up to 180°.

∠B + ∠A = 180

? + 120 = 180

? = 180 - 120

? = 60°

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3 years ago

Math test pls help me

Natalija [7]

Answer:

D. $\frac{45}{x^{10}}$

Step-by-step explanation:

$(3 {x}^{ - 4} )^{2} (5 {x}^{ - 2} ) \\ \\ = (9 {x}^{ - 8} )(5 {x}^{ - 2} ) \\ \\ = 9 \times 5 \times {x}^{ - 8 - 2} \\ \\ = 45 {x}^{ - 10} \\ \\ = \frac{45}{ {x}^{10} }$

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2 years ago

If anyone knows how to do this pls help I could really use it

nekit [7.7K]

The perimeter of the triangle, namely the sum of all its 3 sides, is 110.

now, the three sides are in a 6:7:9 ratio, namely, if we divide 110 by (6+7+9), it will give us hmmm 110/22, a quotient of 22 equal pieces, namely how many times 22 would go into 110.

now, the small side, takes 6 of those pieces, the medium side takes 7 of them and the largest takes 9 of those pieces.

110/22 = 5

the small side is then 6(5).

the medium side is 7(5).

and the largest side is 9(5).

add them up, and you'd get the perimeter, 110 inches.

7 0

3 years ago