What ordered pair is a solution of the equation ? 2x + 4y = 6x - y

Answers

Answer 1

Answer: Use these pictures to figure it out also download Photomath

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What does r equal in 4r+5=3r
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there are 33 students in the band there are more 5th grade students than 3rd grade students there is an equal number of 3rd grade and fourth grade students how many third grade students are in the band

Answers

Use A for third graders, B for fourth graders, and C for fifth graders.

33 = A + B + C

Since there are 3 variables, you need to come up with two other equations to substitute in.

C = 6 + A Since there are six more fifth graders than third graders.

A = B Since there is an equal amount of third and fourth graders.

Since A is in both equations, then lets put each variable in terms of A.

B = A

C = 6 + A

So:

A + A + A + 6 = 33

A + A + A = 27 Since you subtract 6 from both sides.

3A = 27 Since you combine all three A's.

A = 9 Since you divide both sides by three.

Therefore, since A is a number of third graders, there are 9 third graders.

(Sorry if there's any typos.

Answer:

there are 9 third graders

Step-by-step explanation:

mary jo decided to solve the equation 3x-2=-x-6 by entering each of the exppressions into her graphing calculator. to solve the equation as a system, she entered y=3x-2 and y= -x-6. when she used the calculator to find the intersection, she found x=-1 and y=-5. is she right? if so show how she is correct

Answers

3x-2=-x-6

3x+x=2-6

4x=-4

x=-4/4=-1

y=3*(-1)-2=-3-2=-5

y=-(-1)-6=1-6=-5

She is right.

Answer: Yes she is correct.

Explanation:

$y=3*(-1)-2\ny=-3-2\ny=-5$

y=-5

$3x-2=-x-6\n+2. +2\n3x. = -x-4\n+x. +x\n4x= -4\nx = -1$

x= -1

7y(8y - 7) + 46y Please Simplify

Answers

distribute first
a(b+c)=ab+ac
7y(8y-7)=56y^2-49y

now we have
56y^2-49y+46y
56y^2-3y
tada

two product are listed on sale this week. brand A is priced at $15.89 and brand B is priced at 17.37 how many is brand B than brand A

Answers

1.48 will gave you your answer

Which expression is equvilent to -3 (-6b +5)

Answers

18b-15
-3x-6b=18b
-3x5=-15

hope this helps, if it doesn't don't hesitate to tell me :)

-3 (5+6b, that might work

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