Grass Seed worksheet

1. Seed needed: 26.6 kg

1. Multiply the area by the seeding rate to get the seed needed

   $700\times 38$$=\mathrm{26,600}\text{\hspace{0.17em}g}$

2. Divide by 1,000 to turn grams into kilograms

   $\frac{\mathrm{26,600}}{\mathrm{1,000}}$$=26.6\text{\hspace{0.17em}kg}$

3. Divide by the bag size, then round up to whole bags

   $\frac{26.6}{4}$$=6.65$$=\text{round up →}7$

2. Seed needed: 20 lb

1. Express the area in thousands of square feet, the unit the rate uses

   $\frac{\mathrm{4,000}}{\mathrm{1,000}}$$=4$

2. Multiply the thousands of square feet by the seeding rate to get the seed needed

   $4\times 5$$=20\text{\hspace{0.17em}lb}$

3. Divide by the bag size, then round up to whole bags

   $\frac{20}{11}$$=1.818182$$=\text{round up →}2$

3. Seed needed: 10.5 kg

1. Halve the new-lawn rate, since an existing lawn already covers much of the ground

   $40\times 0.5$$=20\text{\hspace{0.17em}g/m²}$

2. Multiply the area by the seeding rate to get the seed needed

   $525\times 20$$=\mathrm{10,500}\text{\hspace{0.17em}g}$

3. Divide by 1,000 to turn grams into kilograms

   $\frac{\mathrm{10,500}}{\mathrm{1,000}}$$=10.5\text{\hspace{0.17em}kg}$

4. Divide by the bag size, then round up to whole bags

   $\frac{10.5}{4}$$=2.625$$=\text{round up →}3$

4. Seed needed: 16.4 lb

1. Halve the new-lawn rate, since an existing lawn already covers much of the ground

   $8\times 0.5$$=4\text{\hspace{0.17em}lb per 1,000 ft²}$

2. Express the area in thousands of square feet, the unit the rate uses

   $\frac{\mathrm{4,100}}{\mathrm{1,000}}$$=4.1$

3. Multiply the thousands of square feet by the seeding rate to get the seed needed

   $4.1\times 4$$=16.4\text{\hspace{0.17em}lb}$

4. Divide by the bag size, then round up to whole bags

   $\frac{16.4}{10}$$=1.64$$=\text{round up →}2$

5. Seed needed: 10.5 kg

1. Halve the new-lawn rate, since an existing lawn already covers much of the ground

   $30\times 0.5$$=15\text{\hspace{0.17em}g/m²}$

2. Multiply the area by the seeding rate to get the seed needed

   $700\times 15$$=\mathrm{10,500}\text{\hspace{0.17em}g}$

3. Divide by 1,000 to turn grams into kilograms

   $\frac{\mathrm{10,500}}{\mathrm{1,000}}$$=10.5\text{\hspace{0.17em}kg}$

4. Divide by the bag size, then round up to whole bags

   $\frac{10.5}{7}$$=1.5$$=\text{round up →}2$

6. Seed needed: 18.6 lb

1. Halve the new-lawn rate, since an existing lawn already covers much of the ground

   $6\times 0.5$$=3\text{\hspace{0.17em}lb per 1,000 ft²}$

2. Express the area in thousands of square feet, the unit the rate uses

   $\frac{\mathrm{6,200}}{\mathrm{1,000}}$$=6.2$

3. Multiply the thousands of square feet by the seeding rate to get the seed needed

   $6.2\times 3$$=18.6\text{\hspace{0.17em}lb}$

4. Divide by the bag size, then round up to whole bags

   $\frac{18.6}{11}$$=1.690909$$=\text{round up →}2$

7. Seed needed: 5.63 kg

1. Halve the new-lawn rate, since an existing lawn already covers much of the ground

   $30\times 0.5$$=15\text{\hspace{0.17em}g/m²}$

2. Multiply the area by the seeding rate to get the seed needed

   $375\times 15$$=\mathrm{5,625}\text{\hspace{0.17em}g}$

3. Divide by 1,000 to turn grams into kilograms

   $\frac{\mathrm{5,625}}{\mathrm{1,000}}$$=5.625\text{\hspace{0.17em}kg}$

4. Divide by the bag size, then round up to whole bags

   $\frac{5.625}{3}$$=1.875$$=\text{round up →}2$

8. Seed needed: 14.25 lb

1. Halve the new-lawn rate, since an existing lawn already covers much of the ground

   $6\times 0.5$$=3\text{\hspace{0.17em}lb per 1,000 ft²}$

2. Express the area in thousands of square feet, the unit the rate uses

   $\frac{\mathrm{4,750}}{\mathrm{1,000}}$$=4.75$

3. Multiply the thousands of square feet by the seeding rate to get the seed needed

   $4.75\times 3$$=14.25\text{\hspace{0.17em}lb}$

4. Divide by the bag size, then round up to whole bags

   $\frac{14.25}{11}$$=1.295455$$=\text{round up →}2$

9. Seed needed: 23.2 lb

1. Halve the new-lawn rate, since an existing lawn already covers much of the ground

   $8\times 0.5$$=4\text{\hspace{0.17em}lb per 1,000 ft²}$

2. Express the area in thousands of square feet, the unit the rate uses

   $\frac{\mathrm{5,800}}{\mathrm{1,000}}$$=5.8$

3. Multiply the thousands of square feet by the seeding rate to get the seed needed

   $5.8\times 4$$=23.2\text{\hspace{0.17em}lb}$

4. Divide by the bag size, then round up to whole bags

   $\frac{23.2}{7}$$=3.314286$$=\text{round up →}4$

10. Seed needed: 21.6 kg

1. Multiply the area by the seeding rate to get the seed needed

   $600\times 36$$=\mathrm{21,600}\text{\hspace{0.17em}g}$

2. Divide by 1,000 to turn grams into kilograms

   $\frac{\mathrm{21,600}}{\mathrm{1,000}}$$=21.6\text{\hspace{0.17em}kg}$

3. Divide by the bag size, then round up to whole bags

   $\frac{21.6}{4}$$=5.4$$=\text{round up →}6$