Answer:
16
Step-by-step explanation:
Students 8 x
Time taken (hours) 18 18 - 12 = 6
If number of students increases, the work will completed in less hours.
So inverse proportion

Additional students required = 24 - 8 = 16
Since we know the area of ΔACD as well as the measurement of the base, we will use these to find the length of the altitude. The formula for the area of a triangle is A=1/2bh. Our area is 30 and our base is 10, so we have:
30=1/2(10)h
30=5h
Divide each side by 5:
30/5=5h/5
6=h
The height of the triangle is also the height of the trapezoid. We can now find the area of the trapezoid. The formula we need is A=1/2(B+b)h. Substituting our numbers in, we have:
A=1/2(10+8)(6)=1/2(18)(6)=54
The area of the trapezoid is 54.
7 pairs x $3 each = $21
21+12=33
So she spent $33 and gained $5
So she probably started off with about $38 on Saturday
Hope I helped :)
Answer:
700 divided by 17 14 divided by 17
not sure about the middle one
answer: 102
Step-by-step explanation:
Answer:
reload the page and try again