The question is asking you to rearrange the equation so you have y on its own on one side and everything else on the other.
We have 10x + 5y = 80. So to get y on its own, we have to minus ten x from both sides: 5y = 80 - 10x.
To get y, we have to divide both sides by 5 (whatever you do to one side, you do to the other side). so y = (80 - 10x) / 5, which is y = 16 - 2x
y = 16 - 2x is your answer!
Hope I helped! If you have any more questions, feel free to comment
Answer: three fifths
Step-by-step explanation:
1/5 is equal to 0.2, so subtracting 2/5 from eight would be the same as subtracting 0.4. Subtracting 3/5 will be the same as subtracting 0.6.
8 - 0.6 = 7.4
to find the 25% of 30
first 25/100=0.25
then we write 0.25 x 30=7.5
so the answer is 7.5 or 120
Answer:
X=3 (hope this helps)
Step-by-step explanation:
So what you want to see if they are equal (in this case they are) so we have 10 plus 12x and we also have 15x plus 1
10 + 12x = 15x + 1 (solve for x)
-15x + 12x=1 - 10
-3x = -9
x=3
lets see if our answer is correct :)
15 x 3= 45 + 1 = 46
12 x 3 = 36 + 10= 46