Answer These Questions and show your work to be brainliest

1 answer:

3 0

1. 20 of 40 is 50% 20/40 = 1/2 1/2 = 50%

2. It is 20% because 600 is 20% of 3000

3. 40% of 30 = 12 50 = 15 10% = 3 (get it)

4, 40% of 65 = 26 50%= 32.5 (get it)

You might be interested in

Help! Everyone keeps trolling me!

zhenek [66]

9514 1404 393

Answer:

0 < x < 4
(- ∞ < x < 0) ∪ (4 < x < ∞)
x ∈ {0, 4}

Step-by-step explanation:

1. The solution is the set of x-values for which the graph is above the x-axis, where y = 0. Those x-values are in the interval (0, 4).

2. The solution is the set of x-values for which the graph is below the x-axis. Those x-values are in either of the two intervals (-∞, 0) or (4, ∞).

3. The x-intercepts of the graph are x=0 or x=4.

5 0

2 years ago

If you travel 40 miles at 45 miles per hour, how many minutes will that take you?

GenaCL600 [577]

Ok so im not good with words and math, but i am going to try my best to explain it. first you will take 45/60 which is the 45 miles per hour. next you will put it equal to 40/x. x is how many minutes. they are set equal to each other because they are the same ratio. (i honestly dont know why you cross multiply, but you just do). you then multiply 40*60 and 45*x. this gives you 2400=45x. you then divide both sides by 45 and get 53 1/3 minutes. or 53 minutes and 20 seconds