Answer:
7
Step-by-step explanation:
It is 7:
31 - 7 = 24
15 - 7 = 8
8/24 = 1/3 = 33%
It is not 12:
31 - 12 = 19
15 - 12 = 3
3/19 = 15%
It is not 6:
31 - 6 = 25
15 - 6 = 9
9/25 = 36%
It is not 9:
31 - 9 = 22
15 - 9 = 7
7/22 = 31%
It is not 11:
31 - 11 = 20
15 - 11 = 4
4/20 = 20%
<u>I subtracted the option from 31 (the new total of marbles) and from 15 (the new total of blue marbles). Then, I divided the new total by the new total of the blue marbles. I converted the decimal into a percentage. If the percentage was not 33%, then it was not the answer.</u>
Answer:
34 m
Step-by-step explanation:
Given:
Length of a rectangular vegetable garden = 9 metres
Area of rectangular vegetable garden = 72 square meters
To find: perimeter of Elise's vegetable garden
Solution:
Area of rectangular vegetable garden = ![72\,\,m^2](https://tex.z-dn.net/?f=72%5C%2C%5C%2Cm%5E2)
Length × breadth = 72
9 × breadth = 72
breadth ![=\frac{72}{9}=8\,\,m](https://tex.z-dn.net/?f=%3D%5Cfrac%7B72%7D%7B9%7D%3D8%5C%2C%5C%2Cm)
Perimeter of rectangular vegetable garden = 2(Length + breadth)
=2(9+8)
=2(17)
=34 m
Answer:
41.88
Step-by-step explanation:
3.49*12=41.88
Answer:
the surface area of the cone is 3243.5 rounded to the nearest tenth
Step-by-step explanation:
4 + 3 * (7 - 2)
4 + 3 * 5
4 + 15
19 <==