Answer:
d. 625.8
Step-by-step explanation:
LxWxH
L=6 you
W=7 you
H=14.9 yd
(6×7)×14.9
42x14.9
625.8
- - To find a "what number is x% of x"
You have to first change 35% into a decimal.
35%=0.35
Now 0.35*22=7.7
Therefore your final answer is 7.7
Answer:
4 or -4
Step-by-step explanation:
Y is directly proportional to x^2 means there is a constant, k, such that y=kx^2.
We are given y=8 when x=2. This information will allow us to find k in the equation y=kx^2.
8=k(2)^2
8=k(4)
This implies k=2 since 2(4)=8.
So the equation for any pair (x,y) is y=2x^2.
We want to find x when y=32.
32=2x^2
32/2=2x^2/2
16=x^2
This implies x=4 or -4.
You can work this out two ways:
1) you can find the percentage of students who have brown hair, and subtract from 100% to find the total percentage of other hair colors,
11 / 25 = 0.44 or 44% > 100% - 44% = 56% < this is the number of students without brown hair,
or
2) you can find out the number of students who have a different hair color, and finding the percentage of that new number:
25 - 11 = 14 < this is the number of students in the class that have a hair color other than brown. To find the percentage:
14 / 25 = 0.56 or 56%
Answer: 56% of students do NOT have brown hair.
