Part A)
The table doesn't represent y as a function of x.
Why? One reason is that 1 or 3 is the first element in more than one ordered pair.
Part B)
f(x) = 10x + 20
f(120)= 10*120 + 20 = 1200 + 20 = 1220
f(120) represents cost of boating for 120 hours.

3 0

2 years ago

Read 2 more answers

If 5 potatoes together have a mass of 1 kilogram and 8 pears together have a mass of 1200 grams, which has the greater mass, a p

lord [1]

The Potato has more mass

7 0

2 years ago

In gym class, Ted runs 4/5 mile. His teacher runs 6 times that distance each day. how many miles does ted’s teacher run each day

steposvetlana [31]

So 4/5 divided by 6 equals

3 0

2 years ago

In a paint factory, an old conveyer line has filled 50 barrels of paint, and is filling more at a rate of 2 barrels per minute.

bezimeni [28]

Answer:

60 barrels

Step-by-step explanation:

y = # of barrels; x = minutes

worker: y = 12x

old line: y = 2x + 50

12x = 2x + 50

10x = 50

x = 5

y = 12(5) = 60

y = 2(5) + 50 = 60

60 barrels

4 0

2 years ago