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3 years ago

HELPPPPPPP I WILL GIVE YOU BRAINLIEST

Mathematics

1 answer:

katovenus [111]3 years ago

4 0

Step-by-step explanation:

7 X + 8 = X+12 + 3X+20

3 X = 24

X= 8

m< RPQ = 8+12 = 20

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Solve the following system of equations by the substitution method. 2x = 10y - 8 3x + 4y + 5 = 0

Natali [406]

Answer:

x = $-\frac{41}{19}$

y = $\frac{7}{19}$

Step-by-step explanation:

2x = 10y - 8

3x + 4y + 5 = 0

2x = 10y - 8

x = 5y - 4

3x + 4y + 5 = 0

3 ( 5y - 4 ) + 4y + 5 = 0

19y - 7 = 0

19y = 7

y = $\frac{7}{19}$

x = 5y - 4

x = 5 ( $\frac{7}{19}$ ) - 4

x = $-\frac{41}{19}$

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3 years ago

18 cm 18 cm 9 cm Area:

Alik [6]

Answer:

2916 cm

Step-by-step explanation:

In area you have to multiply

So all I did was

18x18x9

which equals 2916

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2 years ago

Write the quadratic equation in standard form going through the points (-1,-5) (0,-4) (2,10)

Alexxandr [17]

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3 years ago

Multiply to -260 add to 7

djyliett [7]

What can you be more specific like a put it in a sentence. For example x*-260+7=?

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3 years ago

Simplfy <br> -3+(-10) <br> please explain how to do it too because i am lost in algebra.

Margaret [11]

Answer:
-13

you're basically adding -3 and -10 because they're both negatives

4 0

2 years ago