The cost, c, of a ham sandwich at a deli varies directly with the number of sandwiches, n. If c = $54 when n is 9, what is the c
2 answers:
Answer:
Option A is correct that is $18
Step-by-step explanation:
We have been given an information that is
c=$54 when n =9
when 9 gives 54
Then 1 gives 54/9
cost for one sandwich that is when n=1 then
We need to find the cost for 3 sandwiches that is when n =3 then
when cost for one sandwich is 54/9 then cost for 3 sandwiches is
Therefore, Option A is correct tha is $18.
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Answer:
The area of the parallelogram is 55 square unit.
Step-by-step explanation:
The area of a parallelogram is
It is given that the vertices of the parallelogram are P(-2, -5), Q(9, -5), R(1, 5), S(12, 5).
Plot these points on a coordinate plane, and draw a perpendicular on PQ from the point R.
From the graph is clear that length of PQ is 11 and the height of the parallelogram is 10. So, the area of a parallelogram is
Therefore the area of the parallelogram is 55 square unit.
Answer:
1. Y
2. N
3. N
4. N
Step-by-step explanation:
Let's use the second equation, since it seems to be easier to use.
To check if an ordered pair is a solution, plug it in to the equation.
1. --> Y
2. --> N
3. --> N
4. --> N
Edit : The 4th equation doesn't work for the first equation, whereas the first one still does.