Firstly, let's factorise each equation individually - to do this, find 2 numbers that when summed add to the value of the second term, and when multiplied give the value of the third term.
7 and 12 give us 4 and 3 (4+3=7, 4*3=12) -- 8 and 15 give us 5 and 3 (5+3=8, 5*3=15)
Now we can rewrite these equations as (y+4)(y+3) and (y+5)(y+3) respectively.
Putting this in a fraction: (y+4)(y+3)/(y+5)(y+3) -- We can clearly see that there is a y+3 on both sides of the fraction, and given there are no terms outside of the brackets being multiplied, we can directly cancel.
This gives us our final answer:
(y+4)/(y+5)
Answer:
about like 8 /10
Step-by-step explanation:
Answer:
Y = -5X
Step-by-step explanation:
<u>Don't</u><u> </u><u>have</u><u> </u><u>a</u><u> </u><u>meltdown</u><u>.</u><u> </u><u>It's</u><u> </u><u>not</u><u> </u><u>good</u><u> </u><u>for</u><u> </u><u>you</u><u>. </u><u>Glad</u><u> </u><u>to</u><u> </u><u>help</u><u> </u><u>you</u><u> </u><u>out</u><u>.</u> :)
Answer: -2/3
Step-by-step explanation:
First set up a proportion because they are similar triangles:
9/3x-20 = (72+9)/(56+3x-20)
9/3x-20 = 81/3x+36
9(3x+36) = 81(3x-20)
27x+324 = 243x-1620
1944 = 216x
x = 9
