Answer:
if Jenna sold none, Elijah would sell 6... C=6
Step-by-step explanation:
Add 6 to 32
x - y = 16
x^2 + x^2 = 130
----------------
x^2 - y^2 = 256
+(x^2 + y^2 = 130)
2x^2 = 386
x^2 = 193
x = <span>13.892 (3DP)
----
</span>x - y = 16
13.892 - y = 16
-y = 2.108
y = -2.108
The numbers are: 13.892 and -2.108
Answer:
528 cm²
Step-by-step explanation:
First I would calculate the area of the side rectangles:
20 x 9 = 180 cm²
There are two identical rectangles on both sides so i would x2
180 x 2 = 360 cm²
The area of the middle rectangle:
6 x 20 = 120 cm²
The area of the triangles:
Area of a triangle = (Base x Height)/2
8 x 6 = 48
48 ÷ 2 = 24
There are two identical triangles on the bottom and the top so x2
24 x 2 = 48
Now add all the values up:
360 + 120 + 48 = 528 cm²
I hope this helps!
Answer:
8750
Step-by-step explanation:
Since the random sample contained 125 out of 500 people who voted for the dog park that is about 25%. since 25% of 500 is 125. If we scale that up to 25% of 3500 it would be 8750 people.
Kevin painted
of the wall.
Solution:
Fraction of the wall painted by Elena = ![\frac{5}{9}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B9%7D)
Fraction of the wall painted by Matthew = ![\frac{3}{9}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B9%7D)
Fraction of the wall painted by Kevin = ?
Full wall can be taken as 1.
<u>To find the wall painted by Kevin:</u>
Rest of the wall = Full wall – painted by Elena – Painted by Matthew
![$=1-\frac{5}{9}-\frac{3}{9}](https://tex.z-dn.net/?f=%24%3D1-%5Cfrac%7B5%7D%7B9%7D-%5Cfrac%7B3%7D%7B9%7D)
![$=\frac{1}{1} -\frac{5}{9}-\frac{3}{9}](https://tex.z-dn.net/?f=%24%3D%5Cfrac%7B1%7D%7B1%7D%20-%5Cfrac%7B5%7D%7B9%7D-%5Cfrac%7B3%7D%7B9%7D)
To make the denominator same, multiply the numerator and denominator of the first term by 9.
![$=\frac{9}{9} -\frac{5}{9}-\frac{3}{9}](https://tex.z-dn.net/?f=%24%3D%5Cfrac%7B9%7D%7B9%7D%20-%5Cfrac%7B5%7D%7B9%7D-%5Cfrac%7B3%7D%7B9%7D)
![$=\frac{9-5-3}{9}](https://tex.z-dn.net/?f=%24%3D%5Cfrac%7B9-5-3%7D%7B9%7D)
![$=\frac{1}{9}](https://tex.z-dn.net/?f=%24%3D%5Cfrac%7B1%7D%7B9%7D)
Rest of the wall = ![\frac{1}{9}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B9%7D)
Hence the kevin painted
of the wall.