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tatyana61 [14]
3 years ago
6

Solve. j+k=3j−k=7 Use the substitution method.

Mathematics
1 answer:
il63 [147K]3 years ago
8 0

Answer:

the solution is (5,-2)

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Question 24 Multiple Choice Worth 1 points)
hammer [34]

Given:

The system of equations is:

Line A: y=x-4

Line B: y=3x+4

To find:

The solution of given system of equations.

Solution:

We have,

y=x-4              ...(i)

y=3x+4           ...(ii)

Equating (i) and (ii), we get

x-4=3x+4

-4-4=3x-x

-8=2x

Divide both sides by 2.

-4=x

Substituting x=-4 in (i), we get

y=-4-4

y=-8

The solution of system of equations is (-4,-8).

Now verify the solution by substituting x=-4, y=-8 in the given equations.

-8=-4-4

-8=-8

This statement is true.

Similarly,

-8=3(-4)+4

-8=-12+4

-8=-8

This statement is also true.

Therefore, (-4,-8) is a solution of the given system of equations, because the point satisfies both equations. Hence, the correct option is C.

8 0
2 years ago
It costs a clothing company $463.45 to make 169 T-shirts.
Artemon [7]

Answer:

The unit price for 1 T-shirt is about $2.74.

Step-by-step explanation:

Set up an equation:

Variable x = unit price for 1 T-shirt

169x = 463.45

Divide both sides by 169:

x = 2.742307...

Round to the nearest cent:

x = 2.74

3 0
3 years ago
Answer all of the questions below in order to determine the volume of the rectangular
yawa3891 [41]
180 cubic units

Explanation:
To find the volume of a rectangular prism, multiply together length • width• height.

Height- 5
Width- 9
Length- 4

5 x 9 x 4= 180

Com.ment me if my answer is correct.
MARK ME BRAINLIEST TYSM! Have a nice day/night!
6 0
3 years ago
Let f(x) = 6x2 + 5 and g(x) = 3x-5. Find g(f(0))
devlian [24]

Answer:

10

Step-by-step explanation:

7 0
3 years ago
What is the correct answer for 8(12+15)+4?
sdas [7]

Answer: 220

Step-by-step explanation: Use distributive propetry and PEMDAS to solve.

5 0
3 years ago
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