Answer:
A = -y^2 + 18
y = 9 + (81 - x)^(1/2) and y =9 - (18 - x) ^(1/2)
Step-by-step explanation:
Given:
P = 2 ( l + w)
x = length and y = width
P = 2 (x + y)
36/2 = x + y
x + y = 18
x = 18 - y
<u>Area:</u>
A = x * y
A = (18 - y) * y
A = 18y - y^2
Using quadratic formula (<u>solve for y</u>):
y = 9 + (81 - x)^(1/2) and y =9 - (18 - x) ^(1/2)
<em>//Not sure it's right.</em>
Obviously you cross out the positive answers and look at the negative answers, since the slope is negative. It’s A. Because the y intersect is at -2 and -6... hope that helps
Answer:
38$
Step-by-step explanation:
If you add up 29 plus 38 you will get 17 for 8 plus 9 and 50 for 20 plus 30 add them up and get 67$.
Answer:
Number of girls in the school is 354.
Step-by-step explanation:
Total number of members = Total students + total number of staff members
= 864 +80
=944
Given out of total members are boys.
We have to determine the number of girls in the school.
First we find the number of boys then subtract it from total number of members.
Number of boys = of total number of member
Thus, number of boys are 590
Thus, number of girls = total number of members - total number of boys
= 944 - 590
= 354
Thus, Number of girls in the school is 354.
Hi there!
To solve this problem, we need to find the amount of classmates out of the entire class who did not choose blue as their favorite color and then convert it into a percentage.
First, let's find the fraction:
Since there are 25 total people in her class, since
6 + 9 + 10 = 25
25 is the denominator of the fraction;
Since there are 16 people who did not choose blue,
6 + 10 = 16
16 is the numerator of the fraction.
So, our fraction is 16/25.
Now, we need to convert it into a percentage. To do this, we need to make the denominator 100 by multiplying it by a certain number, and then multiplying the numerator by that same number so the fraction stays equal:
16/25
= 16*4/25*4
= 64/100
= 64%
So, the answer is 64% of Stephanie's classmates.
Hope this helps!