So 2/3=x/(3x+y)
multiply both sides by 3x+y
(2(3x+y))/3=x
(6x+2y)/3=x
multiply by 3
6x+2y=3x
subtract 6x form both sdies
2y=-3x
-3x=2y
the ratio of x to y is
-3:2
Your teacher does know the answer
So, first add 1.75 and 1.15 together. the answer? 2.9, add a zero, 2.90. then subtract 2.90 off of 5, the answer is 2.1.
Convert 8cm and 12cm to 80mm and 120mm. A=(width)(length) so A=(80)(120) which equals 960mm^2.
Answer:
-22
Step-by-step explanation:
1.Factor out the negative sign.
2.Calculate (add for question 18)
3. Add the negative sign back.
Hope this helps :)