Question

A reforestation drive is conducted in a town. The own has 2,214 trees at the start of the drive. Four months after the start of the reforestation drive, the town had 4,770 trees.

If n represents the number of months and T represents the number of trees, which of the following equations can be used to model this situation?

A. T= 2256 + 2214n

B. T = 2214n +639

C. T = 639n + 2214

D. T = 639n - 2214

Answer 1

A reforestation drive is conducted in a town. The town had 2,161 trees at the start of the drive. Four months after the start of the reforestation drive, the town had 4,650 trees.

If n represents the number of months and T represents the number of trees, which of the following equations can be used to model this situation?

Answer 2

c) T = 639n + 2214 is the correct option

Explanation:

Number of months: n

Number of trees: T

Trees at the start of the drive: 2214

The town had 4770 trees after 4 months:

Trees added during four months: total trees - trees at the start of the drive

= 4470 - 2214 = 2556

Trees added during 4 months are 2556 which means trees added in each month were: 2556 / 4 = 639

Trees were planted each month = 639

Trees planted in n months become: 639n

Total trees become: Trees at the start + Trees planted in n months

T = 639n + 2214