The answer is letteer C. You just have to multiply 9 and pi
Answer:
up the price will go up making the x value go up
Answer:
Length = 72 mm
Width = 46 mm
Ratio = 72:46 = 36:23
Step-by-step explanation:
72 and 36 both are divisible by 2. so when we divide them by two we get 36 and 23. we can divide both the sides only with the same number, but 36 and 23 have no common factors. so we leave it here and this is the answer.
Answer:
2.83
Step-by-step explanation:
using the pythagorean theorem,
≈![2.83](https://tex.z-dn.net/?f=2.83)
Answer:
The answer is 30
Step-by-step explanation:
First you have to find 120% of a (12).
![\frac{12}{1} \times \frac{120}{100} = 14.4](https://tex.z-dn.net/?f=%20%5Cfrac%7B12%7D%7B1%7D%20%20%5Ctimes%20%20%5Cfrac%7B120%7D%7B100%7D%20%20%3D%2014.4)
Therefore; 14.4 is 80% of b, and we are trying to find 100% of b
![14.4 = 80\% \\ x = 100\%](https://tex.z-dn.net/?f=14.4%20%3D%2080%5C%25%20%5C%5C%20x%20%3D%20100%5C%25)
we do not know what is 100% therefore we call it *x*. In order to find this unknown value *x* we cross multiply.
![14.4 \times 100\% = 80\% \times x](https://tex.z-dn.net/?f=14.4%20%5Ctimes%20100%5C%25%20%3D%2080%5C%25%20%5Ctimes%20x)
This is the same as saying;
![14.4 \times 1 = x \times \frac{4}{5}](https://tex.z-dn.net/?f=14.4%20%20%5Ctimes%201%20%3D%20x%20%5Ctimes%20%20%5Cfrac%7B4%7D%7B5%7D%20)
100% percent would be 1 because it is the whole number we are trying to find. The 80% would be 4/5. To get 4/5 you can simply break down 80/100 ( this is 80% as a fraction).
so the new equation is: 14.4= 4/5x
We divide both sides by 4/5. Then we will get x tobe equal to 18. Therefore b is 18. We were asked to find (a + b) so.<em> </em><em>1</em><em>8</em><em>+</em><em>1</em><em>2</em><em> </em><em>=</em><em> </em><em>30</em>