Look up the.name of the book online with anser sheet I had that same book just find the page
158, it's going up by 6 every time.
Answer:
Because 3(5x) is the same as 3 *5 * x
Step-by-step explanation:
When a number is next to another in parantheses, it signifies multiplication. In this case, we already have 5 and x grouped together by a multiplication sign, so the entire thing is 5 * x. The statement below is key
Distribution in multiplication is only possible if a variable is grouped to another real number by a plus or minus sign.
So in this case, we have 3 * 5 * x, which is 15x. However, if we had 3(5 + x), we would have 15 (3 * 5) + 3x (3 * x).
Hopefully that makes sense!
If you are working out the number of KM per CM them you divide the KM by the CM:
15/0.75 = 20
This means that it is 20KM per every 1CM
Hope this helps! :)
Answer:
The answer to your question is: r = 0.1
Step-by-step explanation:
Data
P = $4500
A = $9000
t = 9 years
r = rate
Formula
![r = \sqrt[t]{\frac{A}{P}} - 1\\](https://tex.z-dn.net/?f=r%20%3D%20%5Csqrt%5Bt%5D%7B%5Cfrac%7BA%7D%7BP%7D%7D%20-%201%5C%5C)
Substitution
![r = \sqrt[9]{\frac{9000}{4500} - 1\\](https://tex.z-dn.net/?f=r%20%3D%20%5Csqrt%5B9%5D%7B%5Cfrac%7B9000%7D%7B4500%7D%20-%201%5C%5C)
Simplification
![r = \sqrt[9]{2} - 1](https://tex.z-dn.net/?f=r%20%3D%20%5Csqrt%5B9%5D%7B2%7D%20-%201)
Result
r = 1.08 - 1
r = 0.08 ≈ 0.1
