Let the amount Tom does = x
Then Larissa’s time would be 3x( 3 times the amount of Tom)
And Neal would also be 3x
The total of the 3 is 84 hours so as an equation you have:
X + 3x + 3x = 84
Combine like terms
7x = 84
Divide both sides by 7
X = 84/7
X = 12 hours
Tom = x, so Tom exercised for 12 hours.
Answer:
1. D
2. A
Step-by-step explanation:
Q1. Kerry is simplifying
By the definition of negative powers,
Hence,
So, the first step in simplifying the expression is
Q2. Given the expression
First, use the definition of negative powers:
Thus,
Answer:
a nd c
Step-by-step explanation:
Step-by-step explanation:
Given sets are :
A = {1,2,3,4} and B = {a,b,c}
(i)
Hmmmmmm
Let me think for a second