egypthall28 egypthall28

24-01-2020
Mathematics

contestada

use the substitution method to solve the system of equations.

3x+7y=1
y=x-7

A. 5,-2
B. 3,-4
C. 4,-3
D. 2,-5

Respuesta :

jessica0111 jessica0111

24-01-2020

Answer:

A x=5 y=-2

Step-by-step explanation:

y = x − 7 ; 3 x + 7 y = 1

y = x - 7

Substitute

x − 7 for y in 3 x + 7y = 1:

3x + 7y = 1

3x + 7(x-7) = 1

10x - 49 = 1

10x = 50

x = 5

Substitute:

y = 5 - 7

y = -2

Answer Link

01SM1LECHARGE 01SM1LECHARGE

29-11-2020

Answer:

A. 5, -2

Ap.e.x

Answer Link

Otras preguntas

0.94% ash is a __________ ash NGEO

If a die with 6 sides is fair, each number is equally likely to land face up when the die is rolled. a group of students wanted to investigate a claim about cha

need asap will give brainliest if correct

What is the first mistake in Noah's proof? a) Noah used the wrong sides in his ratio for ∠A. b) Noah used the wrong sides in his ratio for ∠B. c) Noah used the

Question 1(Multiple Choice Worth 2 points) (Area of Polygons and Composite Figures LC) An image of a rhombus is shown. A rhombus with a base of 18 inches and

What is the name of the little kid that Thomas becomes friends with? a) Jack b) Billy c) Chuck d) Minho

Marie had a new baby 6 months ago. Marie cries and worries a lot, feels incredibly depressed, and has trouble coping with her daily caregiver and personal activ

Part 2 (12pts)| Identify if the forces are balanced or unbalanced by finding the total net force acting on the boxes 20 N 20 N Net Force: Are the forees balance

Which stage of gene expression are Drs. Daphney and Curtis targeting with their cancer treatment

Identify the parent function of f(x) = 3x 5.