napster328 napster328

22-01-2020
Mathematics

contestada

There are 53 students on the school basketball team. the number of 8th graders is 15 fewer than 3 times the number of 7th graders. how many 7th graders are there?

Respuesta :

zachw32 zachw32

23-01-2020

Answer:

17 7th graders

Step-by-step explanation:

grd 8 is x, grd 7 is y

x+y=53

x=3y-15

use substitution: (3y-15)+y=53

4y-15=53

4y=68

y=17

Answer Link

Otras preguntas

X to the power of 4 equals 20?

Do you believe in God? Why? my answer is no bc I believe in the big bang theory and evolution. I need help explaining this and shortening it

what dose wretched refuse mean

Find the rate of discount for a pair of pants that cost $65 and are on sale for $41.99. Explain each step. by RWBY227 2 minutes ago

Why did Texans declare independence from mexico in 1836? Can someone be nice enough to help me please !!

The founder of Christianity was _____. A. Abraham B. Jesus C. Muhammad D. Moses

What is 3/4 of 40= fractions

What is the nearest tenths of 23.456

What is the answer to 1/2 of 1/5?

What portion of the electromagnetic spectrum can human eyes detect? A. visible light B. visible light and infrared light C. infrared light D. infrared ligh