02-12-2020
Mathematics

contestada

Using the elimination method to solve
2 x-y=8
x + y = 20

Respuesta :

sallymiguel02 sallymiguel02

02-12-2020

Step-by-step explanation:

2x-y=8

x+y=20

------------

3x=28

×=28÷3=9.3

so

9.3+y=20

y=20-9.3

y=20.7

Answer Link

Otras preguntas

If we increase our food intake, we generally gain weight. nutrition scientists can calculate the amount of weight gain that would be associated with a given in

which statement is true about the given information ?

What fraction of a sample of 6832ge, whose half-life is about 9 months, will remain after 2.9 yr ?

The commodities gold and salt were important to many region of west africa because they

What are two characteristics of an enzyme that catalyzes through ping pong?

what factors do not affect nuclear reactions, but do affect chemical reaction

Michelle has x dollars. Tony has nine fewer dollars than Michelle. Answers x , 9 , 7 , x+7 , -9 , x+9 , x-9

2 1/2x −3/4 (2x+5)= 3/8 A. x=−4 5/8 B. x=−3 3/8 C. x=4 1/8 D. x=5 3/8

HELP ME!!! It takes Julie 75 minutes to read 60 pages. a) How many pages can Julie read per minute. Leave the answer as a fraction. b) Julie's book 350 page

explain how people protect themself from black death in the middle age? did it work?