59 Answered Questions for the topic Substitution

08/01/19

05/20/19

Solve equations X+2y=12 and 3x-3y=4 with subsitution and elimination.

So for example like if x+2y=12 end up being at the end x=3.5you would put it into the next equation like 3(3.5)-3y=4and etc for substitution and elimination

03/22/19

Substitution word problem

At a restaurant the cost for a breakfast taco and a small glass of milk is $2.10. The cost for 2 tacos and 3 small glasses of milk is$5.15. Which pair of equations can be used to determine t, the... more

12/20/18

SUBSTITUTION math

A movie theater charges $6.50 for matinee showings and$8.75 for evening showings. Yesterday the theater sold 378 tickets for a total revenue of 2929. 50. How many matinee tickets were sold?

12/20/18

how many solutions does the system have?

y = -7x + 3 and y + 7x = 10 how many solutions does this have?

12/08/18

Determine the solution to the system pf equations below? (Substitution)

------------ x=9+y x+4y-6------------

10/08/18

Use substitution and elimination method.

Substitution: y=x2-6x+9                      y+x=5     Elimination: y=x2-11x-36                   y=-12x+36

09/25/18

When substituting a variable in a term with an exponent, how do I write and solve it?

IE: -2x^2 Do I do: -2(x)^2, -2(x^2) or (-2x)^2 I say this because of a problem I have that says "h(x)=-4x^2 -2x+5"

09/10/18

The sum of ten and the quotient of a number x and 6.

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07/03/18

find and factorise

if a-1/a=4 find: a2+1/a2

06/24/18

The total weight of 2 red blocks and 6 green blocks is 23 ounces.The total weight of 3 red blocks and 4 green blocks is 22 ounces. what’s the total weight of 1

Please include how to solve What’s the total weight of 1 green and red block

06/15/18

Systems of linear and quadratic equations

solve the system. Enter the point that is furthest to the left first. y=-x2-x+19 y+80=x   I currently Have the first Part done which is (-11,-91)   I have the x coord of the second one which... more

05/17/18

a total of 60 hand weights some of the weights are 3 pounds and the rest are 5 pounds if there are 10 more 5 pound weights then 3 pound weight how many of each

it is the gym instructor and i need help solving this problem. i don't know how to find the equations

05/17/18

a total of 60 hand weights some of the weights are 3 pounds and the rest are 5 pounds if there are 10 more 5 pound weights then 3 pound weight how many of each

it is the gym instructor and i need help solving this problem. i don't know how to find the equations

04/10/18

02/27/18

Y =3x+2 y=-3x-4

01/25/18

How to solve y=-2x - 1. y=-4x- 5

I need an answer and how to solve it. Only because I struggle at it in pre algebra. Iwould like it if y’all helped
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