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tester [92]
3 years ago
10

This is my last question on my math test so please help me:

Mathematics
1 answer:
Gnom [1K]3 years ago
5 0

Answer:

Step-by-step explanation:

is number 2

-7,-4...

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Which system has the same situation below?
Likurg_2 [28]

Answer:

2

Step-by-step explanation:

Let's solve the given system of equations.

<u>Given system</u>

x +3y= 10 ----(1)

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

From (2):

-2(x +y)= 4

Dividing both sides by -2:

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

Thus, options 3 and 4 are incorrect as x +y≠ -2.

(1) -(2):

(x +3y) -(x +y)= 10 -(-2)

Expand:

x +3y -x -y= 10 +2

2y= 12

Divide both sides by 2:

y= 12 ÷2

y= 6

Substitute y= 6 into (2):

x +6= -2

x= -6 -2

x= -8

Options (1) and (2) differs only by the value of the expression of -x +y. Thus, let's find its value in the given system of equations.

-x +y

= -(-8) +6

= 8 +6

= 14

Thus, option 2 is the correct option.

7 0
2 years ago
I need help with a math question
adoni [48]
6/8+7/8=13/8 or 1 5/8
4 0
3 years ago
What is the solution of the system pf equations y=-4x+6 y= -5x - 4
kakasveta [241]

that's the solution of the system

6 0
3 years ago
Read 2 more answers
How do I solve 9/5 = x/16
zhenek [66]

Answer:

Cross Multiply

Step-by-step explanation:

1. Multiply 16 by 9 and you get 144
2. Multiply 5 by x

This is called cross multiplying.

3. Set up the equation. 5x=144
144/5=28.8

x=28.8

7 0
2 years ago
Judi's father is 6 feet tall. how many inches is 6 feet tall
kati45 [8]
One feet is equal to 12 inches, so if we multiply 12 x 6 the answer is 72. So 72 inches equal 6 feet. 
4 0
2 years ago
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