How can subtracting the equations help you solve the system?

Mathematics

2 answers:

irakobra [83]2 years ago

8 0

Answer:

The answer is b

Step-by-step explanation:

just got it right on the quiz

devlian [24]2 years ago

4 0

System of equations subtraction method

In the addition/subtraction method, the two equations in the system are added or subtracted to create a new equation with only one variable. ... Substitute the variable back into one of the equations and solve for the other variable. Check the solution--it should satisfy both equations.

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A school administrator believes that the mean class gpas for a given course are higher than the preferred mean of 2.75 at a sign

Svetach [21]

The mean GPA is greater than 2.75.

A grade point average is a figure that represents the average of the final grades obtained in courses over time.
A student's grade point average, sometimes known as a GPA, is computed by adding all accumulated final grades and dividing the total by the number of grades granted.

To find the GPA:

GPA is calculated and could be utilized by the college to tell choices, which include the subsequent educational progression.
Divide the total range of grade factors earned with the aid of the total number of letter-graded units undertaken.
Mean GPA = total/50
= 2.75.

Therefore, the mean GPA is greater than 2.75.

Know more about GPA here:

brainly.com/question/17010398

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4 0

1 year ago

PLSSS HELP IF YOU TURLY KNOW THISS

Andrej [43]

Answer:

B

Step-by-step explanation: