Answer:
First off 78+92+85=255 so yeah its not 300. Plus 300 is no where near 100, but yes three 100s is 300.
Step-by-step explanation:
The mixed number have to become a improper fraction and then you have to subtract like this.
so 7 7/8 you have to multiply 7 times 8 and then add it by 7 .
You do the same thing with the other mixed number 3 times 4 plus 1
So the first one is 63/8 - 13/4 =
first the 4 in the 13/8 have to become 8 . so you do 4 times 2 = 8 and multiply the 13 by 2 = 26 .
so equal
63/8 - 26/8 = then you have to do 63 - 26 = 37 so is 37/8 and then simplify or divide .
when you divide you suppose to get 4 5/8
Answer:
1.5 seconds
Step-by-step explanation:
plug 0 in for y
0=-16t^2+36
then slove for t
-36=-16t^2
-36 / -16 = 9/4
9/4=t^2
square root of 9/4 is 3/2 or 1.5
t=1.5
