So b/10 has to be -1, that means b is -10
Answer:
$88
Step-by-step explanation:
first, you find 20% of 57 which = 11.4
then subract it with 57 which looks like 57-11.4 = 45.6
= 45.6
first, you find 20% of 53 which = 10.6
then subract it with 53 which looks like 53-10.6 = 42.7
= 42.4
then you add them both which = 45.6+ 42.4= 88
Answer:
2x-1=31
5(21-1) + y = 32
She notices that each equation contains the expression 2.x-1. Can she
substitute 3y for 2x-1? Why or why not?
b
Substitute 3y for 2x-1 in the second equation to create one equation with
one variable. Then solve for x and y
Step-by-step explanation:
2x-1=31
5(21-1) + y = 32
She notices that each equation contains the expression 2.x-1. Can she
substitute 3y for 2x-1? Why or why not?
b
Substitute 3y for 2x-1 in the second equation to create one equation with
one variable. Then solve for x and y
Answer:
D. 2x^2
Step-by-step explanation:
Considering only the x^2 terms, you have ...
-4x^2 -? = -6x^2
Add 6x^2 to get ...
2x^2 -? = 0
Add "?" and you have ...
2x^2 = ? . . . . . . matches choice D
