Hello from MrBillDoesMath!
Answer:
y = 2x + 2.5
Discussion:
2y -4x = 5 => add 4x to both sides
2y - 4x + 4x = 4x + 5 => -4x + 4x = 0
2y = 4x + 5 => divide both sides by 2
y = 2x + (5/2) => as 5/2 = 2.5
y = 2x + 2/5
Thank you,
MrB
For the answer to the question if 20% of a number is 35, what is 50% of that number? <span>.2x = 50 </span>
<span>x = 50/.2 </span>
<span>x = 250 </span>
<span>250 x .35 =
The answer to this problem is
87.5
I hope my answer helped you.Feel free to ask more questions. Have a nice day!</span>
Answer:
The slope of the line between two points (-1, 2) and (-2, -4) will be:
Step-by-step explanation:
Considering the points
So, the slope of the line between two points (-1, 2) and (-2, -4) will be:
Okay, let's use x for the 24 page packages and y for the 30 page packages:
x + y = 9
x = -y + 9
Now here's the second equation:
24x+30y = 258
We can input y into our second equation:
24(-y + 9) + 30y = 258
-24y + 216 + 30y = 258
6y = 42
y = 7
9 - 7 = 2, so:
Joann bought 7 :30 paper pakages
and 2 :24 paper packages
