18)
The Last case is 252 because 28 * 9 = 252.
Second Case is 9 because 8*9 = 72, and 252 - 72 = 180, then you divide 180 over 20, and you get 9.
So, 28 * 9 = 20 * 9 + 8 * 9 = 252
19)
in Math, when they say "of", it means you need to multiply, so you get:
![\frac{4}{7} * 98](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B7%7D%20%2A%2098)
do it on the calculator and you get 56.
20)
To add fractions, they need to have the same denominator. Since here they got the same (10), you get:
![\frac{6}{10} + \frac{1}{10} + \frac{4}{10}](https://tex.z-dn.net/?f=%20%5Cfrac%7B6%7D%7B10%7D%20%2B%20%20%5Cfrac%7B1%7D%7B10%7D%20%2B%20%20%5Cfrac%7B4%7D%7B10%7D%20)
![\frac{6+1+4}{10}](https://tex.z-dn.net/?f=%20%5Cfrac%7B6%2B1%2B4%7D%7B10%7D%20)
![\frac{11}{10}](https://tex.z-dn.net/?f=%20%5Cfrac%7B11%7D%7B10%7D%20)
Hope this Helps! :D
Answer:
![5x^2-2x](https://tex.z-dn.net/?f=5x%5E2-2x)
Step-by-step explanation:
5x 2 - 2x
When converted to a household measurement, 9 kilograms is approximately equal to a
Ok. So, say you have 1 whole. If you take half of that it would be 50% or 0.50 of the whole. So with 1.34 you can turn it into 1 and 0.34. You have one whole, so that is 100 percent. You than add the 34 hundredths which is 34 percent. So you have 134%. Do you understand all that?
Answer:
Step-by-step explanation:
3 6 9 12
4 8 12 16