Answer:
17/25
Step-by-step explanation:
You need to add the probability of choosing a blue marble to the probability of choosing a yellow one.
The probability of choosing a blue marble is 10/25, since there are 10 blue ones, and 25 total.
The probability of choosing a yellow marble is 7/25.
10 + 7 = 17
17/25
Answer:
16777216 is the answer....
Given dimensions:
Height of the cylinder = 2 m
Volume is increasing at a rate of = 10 m³/min
Radius = 4 inches
Converting radius in meters.
1 inch = 0.0254 meters
4 inches = meters
we have to find,
Volume of the cylinder is given by
=
Now differentiating with respect to 't'
= 7.83 meter per minute.
> Last year the ratio of the number of middle school students
> to the number of high school students was 1:8.
1/9 x + 8/9 x = makeup of middle and high school students
> this year the ratio ... changed to 2:7
2/9 x + 7/9 x = x (again)
> there are 18 middle school students in the band this year
2/9 x = 18
2x = 9 * 18 → x = 81
Total = 81 in band ...
Last year:
1/9 and 8/9 = 9 and 72
This year
2/9 and 7/9 = 18 and 63
And from there you can figure out the changes:
+9 for middle school (which is increase from 1/9 to 2/9)
--9 for high school (which is decrease from 8/9 to 7/9)