26. SOL Unit: Systems of Equations
Homework 4
Name
Date
Pd
SOLVING SYSTEMS BY SUBSTITUTION: PARTI
Solve each system of equations by substitution. Match each answer below to help you solve
the riddle.
y = x + 2
5x - 4y = -3
3x - 8y = 24
y = x -8
9
y = 5x – 9
-2x – 3y = -7
- 4x + y = 6
y = 7x - 6
6
X + y = 75
10x + y = 48
y = x + 8
4x - 2y = -12

answer: 0.64

step-by-step explanation:

answer: two angles are called supplementary if they add up to 180°. example: the two angles (140° and 40°) are supplementary because they add up to 180°.

step-by-step explanation:

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct

20days louise can read300 pg

step-by-step explanation:

1 day 15 pg 300: 15= 20

x day 300 pg