Answer:
33.3 % (Approx) percent of fish that Tom’s caught of the number of fish his son caught .
25% is the percent of the total amount Tom caught.
Step-by-step explanation:
Formula

Part First
As given
Tom caught 4 fish and his son caught 12 fish.
Here
Part value = 4
Total value = 12
Put in the formula


Percentage = 33.3 % (Approx)
Therefore the 33.3 % (Approx) percent of fish that Tom’s caught of the number of fish his son caught .
Second Part
As given
Tom caught 4 fish and his son caught 12 fish.
Total number of fish caught = 4 + 12
= 16
Part value = 4
Total value = 16
Put in the formula


Percentage = 25%
Therefore the 25% is the percent of the total amount Tom caught.
Answer: Distribute:
=2b+(
1
2
a)(b)+(
1
2
a)(
−2
3
)+−4ab
=2b+
1
2
ab+
−1
3
a+−4ab
Combine Like Terms:
=2b+
1
2
ab+
−1
3
a+−4ab
=(
1
2
ab+−4ab)+(
−1
3
a)+(2b)
=
−7
2
ab+
−1
3
a+2b
Answer:
=
−7
2
ab+
−1
3
a+2b
Step-by-step explanation: done
Answer:
W = 20 (woman's age)
M = 60 (man's age)
Step-by-step explanation:
M = Man's age
W = Woman's age
M + 20 = 2(W + 20)
Sub for M
3W + 20 = 2W + 40
W = 20 (woman's age now)
M = 60 (man's age now)
31 and 37 are the only prime numbers between 30 and 40.