So first, we want to find the total decrease on the number.
Since it was first decreased by 50% and then 10%, we can just multiply the two together to find what 10% of 50% is. I find it easier when they're both fractions, or 1/2 and 1/10.
1/2 * 1/10 = 1/20
So one quarter is 1/4, or 5/20.
1/20 is 4/20 less then 5/20.
1/20 is 30 less then 1/4, then 4/20 must equal 30.
4/20 is also 1/5.
So just multiply 30 by 5, to get 150 as your number. (1/5 * 5 = 5/5)
Answer:
Sorry I didnt answer quick im in a test rn lol
Step-by-step explanation:
3/2
Answer:
x = 5
y = 6
Step-by-step explanation:
9 = 6 by a scale factor of
Use the scale factor to solve for x and y.
For x,
15 × = 5
For y,
18 × = 6
Answer: -10x - 90
Step-by-step explanation: