Answer: 
Step-by-step explanation:
Creating identical expressions involves changing quantities in a way that preserves the end values specified in the equation.
For instance, if Lei sold 4 carnations:
In the second equation listed, the expression (8 + 0.25c) was multiplied by 4, then by 0.25, for a total multiplicand of 1.
You can make a third equation through the same method. I'll multiply (8 + 0.25c) by 2, and then multiply that expression by 0.5 to keep the multiplicand unchanged:
If Lei sold 4 carnations:
0.5 * (16 + 2) = 9
This equation represents the same quantities as the other equations.
Answer:
a]2.3 hrs
b]3.6hrs
Step-by-step explanation:
4hrs = 12 miles
x = 7miles
4 x 7=28/12=2.3
4 x 11=44/12=3.6hrs
Answer:
y=-1/4x-4
Step-by-step explanation:
Answer:
The quantity of ground meat he use for hamburgers is 2 
pounds
Step-by-step explanation:
Given as :
The total quantity of ground meat bought to make hamburgers = 2 
Or, The total quantity of ground meat bought to make hamburgers = 
pound
The quantity of ground meat left after use = 
pound
Now, let The quantity of ground meat used for hamburgers = x pound
So, x = The total quantity of ground meat bought - The quantity of ground meat left
Or, x = pound - pound
Or, x = 
pound
I.e x = 
∴ x = 2 pounds
Hence The quantity of ground meat he use for hamburgers is 2 pounds . Answer
