<h3>
Answer:</h3>
<h3>
Step-by-step explanation:</h3>
A) Let's first consider the effect of the tax:
total payment = (food cost) + 25% × (food cost) = (1 + 0.25)×(food cost)
If the cost of a sandwich is x dollars, the cost of 6 sandwiches will be 6 times that, or 6x dollars. When the $2 cost of the soda is added, we get ...
food cost = 2 + 6x
Putting this into the equation for total payment, we find the expression to be ...
total payment = 1.25(2 +6x)
_____
B) Evaluating the expression for part A with x=5, we get ...
total payment = 1.25(2 +6·5) = 1.25·32 = 40 . . . . dollars
Answer:
8 hours
Step-by-step explanation:
rental fee = 12 + 4/hr
spent = 44
44 = 12+4(hr)
32 = 4(hr)
32/4 = hr
hr = 8
Answer: B. (1/200 = x/19.5)
EXPLANATION
Space shuttle Atlantis model scale 1:200
Length of Atlantis on model = 19.5
The actual length of Atlantis = x
Find x
Scale = 1:200; in decimal = 1/200
When length on model = 1
Actual length = 200
When actual length = x
Length on model = 19.5
Scale = x:19.5 ; in decimal = x/19.5
Equating both scales,
1/200 = x/19.5 (Option B)
