Answer:
25
Step-by-step explanation:
90 - 65 = 25
Therefore, x is 25
Thenks and mark me brainliest :))
Answer:
$247
Step-by-step explanation:
95/5= 19 to find rate per unit which means,
Jessica makes $19 dollars a hour.
19 x 13= $247
So Jessica made $247 in 13 hours of work.
You add two equations together to eliminate a variable. This particular problem is nice, because it's already setup to eliminate X.
3x - 4y = 9
<span>-3x + 2y = 9
</span>
When we add these two together, 3x - 3x cancels each other out, leaving us with 0x, or nothing.
We continue with -4y + 2y (leaves us with -2y) and 9+9 (18).
-2y = 18
18/-2 = -9.
Now we have y = -9, and we can go back into the problems to solve for x.
<span>3x - 4(-9) = 9
</span>
3x + 36 = 9.
3x = -27
x = -9.
Confirm with the final equation:
-3(-9) + 2(-9) = 9
27 - 18 = 9
9 = 9 --- Confirmed.
4 2/9=8/9
8/9 x 6=48/9= 5 3/9
5 3/9= 5 1/3
T = 30h + 84l
C = h + 2l
P = h + 4l
C = 18h + 36l
P = 12h + 48l
