Answer:
Step-by-step explanation:
3a3 (-3a2 + 5a - 5)
Product: -9a5 + 15a4 - 15a3
3a3 (-3a2 + 5a - 5)
Answer:
Here's what i know:
x + y = 23
3y / 20 =x
Here we can use substitution to help find our answer:
y + 3y/20 = 23
20y/20 + 3y/20 = 23
23y/20 = 23
23y = 23 * 20
y = 23 * 20 / 23
y = 20
x + 20 = 23
x = 3
Answer:
Step-by-step explanation:
It's a because the form for being proportional is
ab=k
or
a/b=k
4/6=k
4 times 6=k
then 5 times 7=k
false so
so there is no ratio so the answer is A
