Homework Help: math

Posted by Taylor on Wednesday, October 3, 2012 at 7:06pm.

mr. callaway needs to purchase enough grass seed to cover a 3000 square foot lawn and a 4200 square foot lawn. if 40 ounces of grass seed will seed a 2400 square foot lawn how many ounces does he need to seed both lawns

math - Ms. Sue, Wednesday, October 3, 2012 at 7:13pm
2400/40 = 60 ounces per square foot

Multiply:

60 * 3,000 = ?

60 * 4,200 = ?

Add the two products.
math - Taylor, Wednesday, October 3, 2012 at 7:19pm
the answers are a(20
b(30
c(120
d(180
math -- oops! Sorry! - Ms. Sue, Wednesday, October 3, 2012 at 7:29pm
I made a major stupid booboo! Forget what I posted above.

1 ounce will seed 60 square feet.
3,000 / 60 = 50 ounces
4,200 / 60 = 70 ounces

50 + 70 = 120 ounces

The answer is c.

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