A few days ago
88888888

# more homework help.?

1) grass grows in a field at some rate r, where r is the units of grass grown per day. It is known that if 10 sheep are turned out on a field, the grass will be gone in 20 days, if 15 sheep are turned out on a field, the grass will be gone in 10 days, in how many days will be the garss gone, if 25 sheep are turned out on a field?

2)a drove of sheep and chickens have a total of 99 heads and feet. there are twice as many chickens as sheep. how many of each are there?

3)the rule that at least one of each kind of livestock – cows, pigs, and sheep – had to be purchased.each cow cost \$10, each pig cost \$3, and eahc sheep cost \$.50, how many of each kind of livestock did the farmer buy, if he had \$100?

4)you’ve been asked to buy 100 squeegies, usong \$100, no more, no less. there are no sales tax, red squeegies cost \$6, yellow squeegies cost \$3, and blue squeegies cost \$.10, how many of each must you buy?

A few days ago
Steve A

2) 5s + 3c = 99

c = 2s

11s = 99

s = 9

c = 18

3) 10c + 3p + .5s = 100

many possible answers to that equation, for example

9 cows, 3 pigs, 2 sheep

9 cows, 2 pigs, 8 sheep

9 cows, 1 pig, 14 sheep

4) 6r + 3y + .1b = 100