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
the answers are a(20
b(30
c(120
d(180
I made a major stupid oo! 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.
Well, Mr. Callaway is going to need some serious grass seed power! Let's do the math.
First, we need to figure out the total square footage of both lawns. The first lawn is 3000 square feet, and the second lawn is 4200 square feet. So, the total area is 3000 + 4200 = 7200 square feet.
Now, if 40 ounces of grass seed is enough to seed a 2400 square foot lawn, we can set up a proportion to find out how many ounces he needs for 7200 square feet.
40 ounces / 2400 square feet = X ounces / 7200 square feet
Let's cross multiply:
40 * 7200 = 2400 * X
288000 = 2400X
Now, divide both sides by 2400:
X = 288000 / 2400
X = 120
So, Mr. Callaway needs 120 ounces of grass seed to seed both lawns. That's enough to make the grass say "seedy" jokes for days!
To find out how many ounces of grass seed Mr. Callaway needs to seed both lawns, we can follow these steps:
Step 1: Calculate the total square footage of both lawns.
- The area of the first lawn is 3000 square feet.
- The area of the second lawn is 4200 square feet.
- To find the total square footage, add the area of both lawns: 3000 + 4200 = 7200 square feet.
Step 2: Determine the amount of grass seed required to seed a 2400 square foot lawn.
- Given that 40 ounces of grass seed will seed a 2400 square foot lawn, we can create a proportion to find the amount of seed needed to cover 1 square foot: 40 ounces / 2400 square feet = x ounces / 1 square foot.
Step 3: Use the proportion from step 2 to calculate the amount of seed needed for 7200 square feet.
- Solve the proportion by cross-multiplication:
40 ounces * 1 square foot = 2400 square feet * x ounces
40 ounces = 2400 square feet * x ounces
40 ounces = 2400x ounces
Dividing both sides by 2400:
40 / 2400 = 2400x / 2400
0.0167 = x
Step 4: Multiply the amount of seed needed per square foot (x) by the total square footage of both lawns.
- Multiply 0.0167 ounces/square foot by 7200 square feet:
0.0167 ounces/square foot * 7200 square feet = 120.24 ounces
Thus, Mr. Callaway needs approximately 120.24 ounces of grass seed to seed both lawns.
2400/40 = 60 ounces per square foot
Multiply:
60 * 3,000 = ?
60 * 4,200 = ?
Add the two products.