Answer:

Step-by-step explanation:
Hi there!
Let
represent "the number".
A number added by 7 is the same as that number times four minus eleven.
A number added by 7 ⇒ 
Is the same as ⇒ 
The number times four ⇒ 
Minus eleven ⇒ 
I hope this helps!
Answer:
-4/5
Step-by-step explanation:
m=y2-y1/x2-x1
=5-1/-2-3
=-4/5
Write the ratio out.
Number of hands Betty won : Number of hands Adam won
5:20
Both can be simplified by the common factor of 5.
1:4 is the solution.
Answer:
2.50x+1.25y=z
Step-by-step explanation:
Let the number of juice bottles = x
And the number of containers of popcorns=y
And the total number of juice bottles and containers of popcorns=z
Total number of juice bottles=x times $2.50
Total number of containers of popcorn= y times $ 1.25
equation; 2.50x+1.25y=z