Answer:
25 Minutes
Step-by-step explanation:
Well, 1/4 of an hour is obviously 15 minutes. So if she read 3/5 of the book in 15 minutes, you have to find how long it took her to read 1/5 of the book. If 15 minutes is 3/5, then 15/3 is 5, which is the time it took to read 1/5 of the book. You add 10 to 15 and you get 25. I hope this helps!
Answer:
3
Step-by-step explanation:
Answer:
see the procedure
Step-by-step explanation:
we have
step 1
Let
y=f(x)
step 2
Exchange the variables
x for y and y for x
step 3
Isolate the variable y
step 4
Let
Answer:
There are 180 marbles in the jar
Step-by-step explanation:
Let x = number of marbles in the jar
x * 25% = number of red marbles
x * .25 = 45
Divide each side by .25
x *.25/.25 = 45/.25
x =180
There are 180 marbles in the jar
Answer:
D
Step-by-step explanation:
You just have to expand and you'll get the answer.
