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svetoff [14.1K]
3 years ago
14

I need help with number 4!

Mathematics
2 answers:
irina1246 [14]3 years ago
7 0
X is -8 and Y is 6 I hoped this helps!
lesya692 [45]3 years ago
5 0

Answer:

x = -8, y = 6

Step-by-step explanation:

x + 2y = 4 ------(1)

x + y = - 2

y = - x - 2 ----------(2)

Substitute y in (1)

x + 2(- x - 2) = 4

x - 2x - 4 = 4

- x = 4 + 4

x = -8

Substitute x in (2)

y = - (- 8) - 2 = 8 - 2 = 6

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Naddika [18.5K]

um I dunno because I need points to ask a question sorry

8 1
3 years ago
You are assigned 32 math exercises for homework. You complete 87.5 of these before dinner. How many do you have left to do after
VARVARA [1.3K]

Answer:

4

Step by step:

This is if the question is saying you completed 87.5% of the exercises. Otherwise, I don't know what it is asking.

87.5% of 32=28

32-28=4

6 0
3 years ago
First-person to get this right with an explanation gets Brainliest
Natasha2012 [34]

Answer:

17b

Step-by-step explanation:

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3 0
3 years ago
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What are the solutions to x2 + 8x + 7 = 0? A. x = –8 and x = –7 B. x = –7 and x = –1 C. x = 1 and x = 7 D. x = 7 and x = 8
NikAS [45]

Answer:

x= -7      x = -1

Step-by-step explanation:

x^2 + 8x + 7 = 0

Factor

What 2 numbers multiply to 7 and add to 8

7*1 = 7

7+1 = 8

(x+7)(x+1) =0

Using the zero product property

x+7 =0   x+1 = 0

x= -7      x = -1

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3 years ago
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What is 5/12 divided by 3/16 as a fraction?
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<span>The answer is
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