Answer:
C. 120 students
Step-by-step explanation:
10 + 15 + 20 +30 = 75%
100 - 75 = 25%
25% chose football which is 100 students
30% chose swimming
setup proportion:
25/100 = 30/x
25x = 100(30)
25x = 3000
x = 120
Area of a triangle = 1/2 x base x height
--------------------------------------
Find Height :
--------------------------------------
3.75 = 1/2 x 2.5 x height
3.75 = 1.25 x height
height = 3.75 ÷ 1.25
height = 3 meters
----------------------------------------------------------------------------
Answer: The height is 3 meters.
----------------------------------------------------------------------------
Answer:
280
Step-by-step explanation:
<u><em>The question in English is</em></u>
Write the number that has the same value as 28 tens
we know that
One tens is equal to the number 10
so
To find out the value of 28 tens, multiply the number 28 by 10

Answer:
89.84375
Step-by-step explanation:
Given that on a finance exam, 15 accounting majors had an average grade of 90. On the same exam, 7 marketing majors averaged 85, and 10 finance majors averaged 93.
To find weighted mean.
Here weights can be considered as number of majors in each subject

Weighted total = 1350+595+930 = 2875
Weighted mean = weighted total/total students

Divide one half by what
IF your talking about this
100 divided by 1/2 then it would be 50 and all i did was put the multiply 100 by .5