emmass15 emmass15

02-03-2021
Mathematics

contestada

1. What is the solution of the system
{3x - y = 14
{4x + y = 21 ?
A (−5, 3)
B (4, −2)
C (5, 1)

Respuesta :

surjithayer10otahza surjithayer10otahza

02-03-2021

Answer:

C

Step-by-step explanation:

3x-y=14

4x+y=21

add

7x=35

x=35/7=5

4×5+y=21

y=21-20=1

so (5,1 ) is the solution.

Answer Link

Otras preguntas

Rome contributed to the development of world languages.

These were themes of Wilson's Fourteen Points speech EXCEPT (A) creation of an international organization (B) preservation of colonial inequities (C) freedom to

He wanted to make another quilt with an area of 42 square feet. What are its possible dimensions if they must be whole numbers? Which length and width makes the

How do living things affect one another ?

The cost of 12 oranges and 7 apples is $5.36. eight oranges and 5 apples cost $3.68. Find The cost of each

Which verb agrees with its subject? Many passengers who ride on the bus __________ to music through headphones. A. listening B. listen C. was listening D. liste

Meetings of Federal Reserve officials occur in Boston New York Washington, D.C. Chicago

The moon has a shape of what geometric solid?

what does a habitat and a niche have in common

What is the source of the oxygen released into the air as a product of photosynthesis? A. Chlorophyll B. Carbon dioxide only C. Water only D. Both water and car