3 years ago

Tell whatever the ordered pair is a solution of the given system.

Mathematics

1 answer:

bagirrra123 [75]3 years ago

5 0

1. No 2. Yes 3. No
I’m pretty sure

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astraxan [27]

Answer:

the answer is A and B

Step-by-step explanation:

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3 years ago

What does (Y) equal?<br><br> 2(5 + y) = 18

Bas_tet [7]

Answer:

y = 4

Step-by-step explanation:

distribute

10 + 2y = 18

minus 10 from both sides

2y = 8

divide by 2

y = 4

6 0

3 years ago

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Calculate the mean and variance of the sample data set provided below. show and explain your steps. round to the nearest tenth.

eimsori [14]

Mean = (14 + 16 + 7 + 9 + 11 + 13 + 8 + 10) ÷ 8 = 11

Variance =
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Answer: 9.71

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3 years ago

Need help plese! The polygons in each pair are similar. Solve for x. *

Lena [83]

Answer:

Step-by-step explanation:

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2 years ago

5x-2y=11 and 3x+4y=4<br>Find the value of x and y in equation.

nadya68 [22]

5x-3y=11---(1)
3x+4y=4---(2)

(1)×3 and (2)×5

15x-9y=33-(3)
15x+20y=20-(4)

Subtract both

$\\ \sf\longmapsto -29y=13$

$\\ \sf\longmapsto y=\dfrac{-13}{29}$

Put in eq(1)

$\\ \sf\longmapsto 5x+\dfrac{-117}{29}=11$

$\\ \sf\longmapsto 5x=11+\dfrac{117}{29}=\dfrac{261+117}{29}=\dfrac{278}{29}$

$\\ \sf\longmapsto x=\dfrac{278}{145}$

7 0

2 years ago

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