goldenboy39 goldenboy39

01-05-2020
Mathematics

contestada

Solve the system of equations.
3m+3n=36
8m-5n=31

please help me

Respuesta :

amna04352 amna04352

02-05-2020

Answer:

m = 7, n = 5

Step-by-step explanation:

3m+3n=36

m + n = 12

n = 12 - m

8m-5n=31

8m - 5(12 - m) = 31

8m - 60 + 5m = 31

13m = 91

m = 7

n = 12 - 7

n = 5

Answer Link

Otras preguntas

ack on ore ore 12 ch Question 1 When solving 2x + 5y = 7 - 3x + 4y = 9 by the elimination method, we can eliminate x by multiplying the first equation by 3 and

1. La W realiza una encuesta de faborabilidad sobre las reformas al sistema de salud y pensión. El 25% de las personas encuestadas, esta a favor de las reformas

e investment decision rule for net present value calculations is to invest: A) in the project with the lowest NPV. B) in the project with the lowest discount ra

2. Dee Pollen bought a condo that has a $98,000 mortgage loan with a 7.5% interest rate. Her monthly payment is $686.00.

Jason hits a volleyball so that it moves with an initial velocity of 6.0 m/s straight upward. If the volleyball starts from 2.0 m above the floor, how long will

HI PLEASE HELP ON QUESTION ASAP WITH A GOOD ANSWER! 21PTS! ANY SILLY ANSWERS WILL BE DELETED / REPORTED. IF YOUR ANSWER AND EXPLINATION IS CORRECT I WILL RATE Y

Anita’s mother is 5 times older than Anita and Anita is twice as old as his sister Rita. In two years time, the sum of their ages will be 58. How old is Anita n

Anita’s mother is 5 times older than Anita and Anita is twice as old as his sister Rita. In two years time, the sum of their ages will be 58. How old is Anita n

Find the variance of the data. 251, 224, 237, 255, 268 X = 247 Variance (0²) = [?]

The formula for the perimeter P of a rectangle with length / and width w is as follows. P=21+2w Suppose the length of the rectangle is 2 times the width. Rewrit