Answer:
x + 14 = 2(x + 6)
x = 2
Step-by-step explanation:
Let
Algebra book age = x
Chemistry book age = x + 8
In 6 years time
Chemistry book age = x + 8 + 6
= x + 14
Algebra book age = x + 6
the chemistry book will be twice as old as the Algebra book.
x + 14 = 2(x+6)
x + 14 = 2x + 12
x - 2x = 12 - 14
- x = - 2
Divide both sides by -1
Check:
Chemistry book age = x + 14
= 2 + 14
= 16
= 2 + 6
= 8
Third choice
the answer is the one with
9 18
-13 -14
211
(c)
Given
The attached graph
Required
Find h(3)
The formula to use in solving this is:
Substitute 3 for x
From the attached graph, the value od x = 3 points to the value of y = 1.
So, we have: