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3 years ago

Explain how you use substitution to solve a system of linear equations.

2 answers:

7 0

The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.

lions [1.4K]3 years ago

7 0

Answer: Step 1 : First, solve one linear equation for y in terms of x .

Step 2 : Then substitute that expression for y in the other linear equation.

Step 3 : Solve this, and you have the x -coordinate of the intersection.

Step 4 : Then plug in x to either equation to find the corresponding y -coordinate.

Step-by-step explanation: MARK ME AS BRAINLIEST PLEASE PLEASE PLEASE!!!

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A washer and a dryer cost $585 combined. The washer costs $65 less than the dryer. What is the cost of the dryer?

Mekhanik [1.2K]

I believe the dryer costs $357.50
there's an easy way to solve this
you just divide the given price($585)
by 2 and then to one half add $65
and the answer is 65+292.5=357.5

6 0

3 years ago

I can't quite figure out what ( 7- 4n ) x 6 is with distributive property.

Tema [17]

Answer:

(42-24n)

Step-by-step explanation:

(7-4n)×6

take the 6 and multiply it to the integers in the paraenthesis.

so you take the ouside number which is 6 and multiply it with the first number which is 7 in the paraenthesis.

6×7=42

(42-4n)

then take the next number 4n and multiply by 6

4n × 6 = 24n

finally put it all together

(42-24n)

sorry if that didnt help

7 0

3 years ago

1.7.PS-6

EleoNora [17]

Answer:africa

Step-by-step explanation:

science

4 0

3 years ago

Connexus.com/assessments/testNav.aspx?idAssessment=1148989&idWebuser=4086203&idSection=1623806&idHtmllet=11244178&am

Ivanshal [37]

Answer:

there are 3 answers

Step-by-step explanation:

the original is 23 1/2

Now he can do 23

or he can do 22

5 0

2 years ago

The hypotenuse of a right triangle measures 11 cm and one of its legs measures 1 cm. Find the measure of the other leg. If neces

goblinko [34]

Answer:

10.9 is the length of the other leg

Step-by-step explanation:

use the reverse Pythagorean therm

the square root of 11(squared) - 1(squared) = 10.9

5 0

2 years ago