Answer:
73.8x+45y
Step-by-step explanation:
1. Distribute 9 to the numbers inside the parenthesis
23.4x + 45y + 50.4x
2. Combine like terms( in this case the numbers with the x)
73.8x + 45y
The answer is 8.
explanation: if g=5, you would simply multiply 4x5 which is 20. then you would subtract 20-12 which gives you 8:)
Answer:
Therefore, Sara’s current age (5 years later) is 19 years old.
Step-by-step explanation:
Let xx be Sara’s age five years ago. Therefore, Sara’s aunt’s age 5 years ago is 4x4x.
The difference in their ages is a constant, no matter how many years have gone by. (Can you see why?)
4x−x=42
3x=42
x=42/3
x=14
14+5=19
Therefore, Sara’s current age (5 years later) is 19 years old.
Answer:
C
Step-by-step explanation:
First, factor the original expression:
As we can see, D is the same as above. Eliminate D.
Go through each of the answer choices.
A:
This is equivalent to what we factored. Eliminate A.
B:
This is again equivalent to what we factored. Eliminate B.
C:
This cannot be simplified and it is not equivalent to what we have previously. C is not the equivalent expression.
LCM (5,12) = 60
Roomy will do both again in 60 days ( 2 months )
