Let f(x) represents function that tells us Derek's earning depending on square feet of lawn mowed which is x.
First we construct function:
f(x) = x/1000 * 1 + 30
x/1000 is a number that tells us the number of mowed units. for x = 1000 square feet he earns 1 dollar that is why we have to divide x by 1000.
if he earned 204 first week that means that x =:
204 = x/1000 + 30
x/1000 = 174
x = 174 000
if we check for each week that he worked we will see that square footage of the lawns he mowed match forth (last) option.
Answer is D.
That's the answers for those 26) B
27) C
28) C
Answer:
8 pounds
Step-by-step explanation:
3 ft board = 2lb
12 ft board is 4 times more so
2x4 = 8 lb
Answer:
210 ways.
Step-by-step explanation:
The number of ways to choose 3 women from 5 is 5C3 = 5! / 3!2!
= 10 ways.
The number of ways to choose 2 men form 7 = 7C2 = 7! / 5!2! = 21 ways.
So the number of ways of choosing the team of 5 = 10 * 21 = 210 ways.
