75 watch balloons filled in 40 mins
Answer:
43.49
Step-by-step explanation:
let his normal hourly rate be x
16x+7x/2=848
39x/2=848
x=848 ÷ 39/2
=43.48717
Answer: A. (x - 4, y - 2)
B. (x + 7, y - 11)
<u>Step-by-step explanation:</u>
A) How do you get the x-coordinate of 3 to become a x-coordinate of -1? by subtracting 4 --> x - 4
How do you get the y-coordinate of 5 to become a y-coordinate of 3? by subtracting 2 --> y - 2
The transformation is: (x - 4, y - 2)
B) How do you get the x-coordinate of -4 to become an x-coordinate of 3? by adding 7 --> x + 7
How do you get the y-coordinate of 11 to become a y-coordinate of 0? by subtracting 11 --> y - 11
The transformation is: (x + 7, y - 11)
K-3 is the expression for 3 fewer than K
100% of the price = $400
x % of the price = $320
we need to find x
using a proportion
100 : 400 = x : 320
100 * 320 = 400 * x
32000 = 400x
x = 32000 / 400
x = 80
That means the new price is 80% of the previous price.
100% - 80% = 20%
and based on this we can make a conclusion that the discount was 20%
I hope it is clear to you, feel free to ask anything about it :)
