word problem!!!!!!!!!?

Question

you have entered a marathon to raise money for charity. you have recieved pleges of $.20,$.10 and $.15 per mile you complete.

qustion- write an expresion for the total you will earn for the charity if u complete 10 miles

Answer 1

amount = .2x+.1x + .15x where x is number of miles
amount = .45x

amount = .45(10) = 4.5 dollars!

Answer 2

(.2*x +.1*y+.15*z)*10=$

x is the number of people who pledged $.20
Y is the number who pledged $.1
and Z is the number who pledged $.15

$ is the total amount made from a 10 mile run

Answer 3

y = x (.20+.10+.15)
= 10 (.45)
= 4.50

Therefore you would earn 4 dollars and 50 cents.

Answer 4

10 * (.20 * a + .10 * b + .15 * c) = Total

Where a is the number of 20 cent/mile pledges,
b is the number of 10 cent/mile pledges, and
c is the number of 15 cent/mile pledges.

Answer 5

$=(.2+.1+.15)x(10)

Answer 6

2a + 1.5b + 1c
[formula according to $]

10 (0.2a + 0.15b + 0.1c)
[formula according to cents]

a,b,c are the number of pledges made for each amount, when you complete 10 miles

Answer 7

0.2*floor(x/10) + 0.1*floor(x/10) + 0.15*Floor(x/10).

Where floor(q), is a function that returns the largest integer less than or equal to q.