8x + 3y = 20.50
-
4x+5y=22.50
=
4x-2y=-2, so you have to divide each number by 2, then
2x-y=-1, so
-y=-1-2x /-1, y=1+2x, then replace it with one original equation like the first one for instance:
8x+3(1+2x)=20.50, then
8x+3+6x=20.50, then
14x=20.50-3
14x=17.5
x=1.25, then solve y:\
y=1+2*(1.25)
y=1+2.5
y=3.5,
So answer is x=1.25, and y=3.5
Answer:
Yes.
Step-by-step explanation:
Divide - 48 / 8 which equals 6. Stacey makes 6 necklaces in 1 minute. Then, do 24 / 4. This also equals 6. Nick makes 6 necklaces in one minute. Therefore, their speed is equivalent.
215,415 sorry if my answer might be incorrect
Answer:
5263.15789474
Step by Step:
1 ÷ 0.00019 = 5263.15789474
Checking Answer:
0.00019 x 5263.15789474 = 1
So the answer is indeed 5263.15789474
Hope this Helps! :)
75 42
----- -----
100 x
75 x= 4200
--- ------
75 75
x = 56