Answer:
4
hours
Step-by-step explanation:
he was gone for 5
hours, he spent
an hour driving.
5
-
= 4
hours at work.
The absolute value of 9.8 is 9.8, and the absolute value of - 10/3 is 10/3
The Absolute value of a number is always positive.
Answer:
B is the correct answer
Step-by-step explanation:
250 cm2
Equation required for this question:
an • 1.072^n = 14,580
Where a = payment every half year and n = number of half years
There are 12 half years in 6 years.
Therefore n = 12, substitute this.
12a • 1.072^12 = 14,580
12a = 14,580 / 1.072^12
12a = 6,330~
a = 527.5 ~
The new equation after the expression equivalent to x from the first equation is substituted into the second equation is: 
Step-by-step explanation:
We will solve the initial steps for substitution method for finding the correct answer
Given equations are:

From equation one

Putting x = -4y-9 in equation 2

Hence,
The new equation after the expression equivalent to x from the first equation is substituted into the second equation is: 
Keywords: Linear equations, variables
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