7.
10% = 6
25% = 15
50% = 30
20% = 12
_____________________
8.
a = 35
b = 105
c = 140
____________________________
9.
15 is 30% of 50.
_____________________________
10.
The punch recipe contains 25% lemonade:
24/6 = x/100
x=1/4 x 100 = 25%
_____________________________
11.
520
multiply 650 by 80 amd then divide by 100
or simply multiply 650 by 0.8
to get 520 students.
_______________________________________
12.
Number of items checked = 300
Defective items = 3%
Number of defective items =
Number of defective items =
Number of defective items = 9
Number of items worked = Total items - Number of defective items
Number of items worked = 300 - 9 = 291
291 items of checked items worked.
Answer:
f(5) = 25
Step-by-step explanation:
f(x) = 3x + 10
f(5) = 3(5) + 10
f(5) = 15 + 10
f(5) = 25
The probabilities:
-Two break points are selected randomly (and distributed uniformly) on the stick.
The stick is first broken into two pieces. The longest (or rather, not the shortest) is then broken into two.
-The stick is first broken into two pieces. A piece randomly selected with probability 1/2 is then broken into two.
-The stick is first broken into two pieces. A piece randomly selected with the probability proportional to its length is then broken into two.
I would suggest using a protractor
