5x - 3y + 1 = 16 ⇒ 10x - 6y + 2 = 16
2x + 5y + 0 = -6 ⇒ <u>10x + 25y + 0 = -6</u>
31y + 2 = 10
<u> -2 -2</u>
<u>31y</u> = <u>8</u>
31 31
y = 8/31
5x - 3(8/31) + 1 = 16
5x - 24/31 + 1 = 16
5x + 7/31 = 16
<u> -7/31 -7/31</u>
<u>5x</u> = <u>10 24/31</u>
5 5
x = 2 24/155
(x, y) = (2 24/155, 8/31)
Its B
the answer is above..................................ok
Answer:
70
Step-by-step explanation:
There are 7 options for blouses. Each blouse can be matched with one of 10 skirts. So the total number of combinations is:
7 × 10 = 70
4. Substitute for y
x+(2x+2)=-3
3x+2=-3
3x=-5
x=-5/3
Plug the x value in
y=2(-5/3)+2
y=-10/3+2
y=-4/3
Final answer: B
5. 3x+4=3x+7. There are no solutions since they are parallel (same slope) but different y intercepts (not coinciding).
I don’t know how to do that math I’m only in the 6th grade