Answer:
95
students in the seventh grade have taken swimming lessons.
Explanation:
We calculate
38
%
of
250
using the following formula:
x
=
250
×
38
100
x
=
25
0
×
38
10
0
(cancel by 10)
x
=
5
25
×
38
2
10
(cancel by 5)
x
=
5
×
19
38
1
2
(cancel by 2)
x
=
5
×
19
x
=
95
Step-by-step explanation:
9514 1404 393
Answer:
Step-by-step explanation:
We can let d represent the number of dimes. Then the number of quarters is 23-d, and the total value of the change is ...
0.10d + 0.25(23 -d) = 4.70
-0.15d + 5.75 = 4.70
1.05 = 0.15d . . . . . . . . add 0.15d -4.70 to both sides
7 = d . . . . . . . . . . . . . . divide by 0.15
There were 7 dimes in the change purse.
__
There were 23-7 = 16 quarters.
Answer: 47.8044444444
Step-by-step explanation: that's what i got make sure you typed out the problem correctly as well
Answer:
ok
Step-by-step explanation:
Find the volume of the cylinder and divide by 2:
V = pi * r^2 * h
V = 3.14 * 11^2 * 17
V = 6458.98
Divide by 2 since it's half full:
6458.98 / 2 = 3229.49
Now divide it by 46.2 to see how long it will take to drain out:
3229.49 / 46.2 = 69.902
So it will take approximately 70 seconds to drain out.