Areforestation 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

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

Step-by-step 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

b

step-by-step explanation:

your exact question is kind of difficult to understand, so maybe an example will explain what you're supposed to do? i'll work through the first problem on the worksheet.

suppose you have a tray of 652 brownies, and you have 5 friends that you want to feed without picking favorites. how many brownies can you dole out to each of your friends in equal amounts? how many will be left over for you to eat?

what you're doing here is finding a way to arrange the number 652 as the sum of integer multiple of 5 and some remainder:

here ("q" for quotient) is the number of brownies each of your friends get, and is the remainder. that's the basic idea behind division.

we break up the number 652 into parts so that the leading digit stands on its own:

652 = 600 + 52

first we check if it's possible to hand out exactly 100 brownies to each friend. with 5 friends, this means we want to know if we can take out 500 brownies from the tray. we can do this 1 time because we have 600 brownies to take from, and when we do that we're left with 100 + 52 brownies to divvy up. so we know that

652 = 1*500 + 152

next we want to know if it's possible to hand out exactly 10 brownies per friend. if we can, we have to remove 50 brownies from the tray each time until we can't. we have 152 brownies left, and we know that 3(50) = 150, so

152 = 3*50 + 2

now we have 2 brownies left in the tray. is it possible to hand 1 out to each of your 5 friends? no, you'd need a minimum of 5 brownies to do that. so the last 2 are yours.

putting everything together, we found that

652 = 1*500 + 3*50 + 2

and we can rearrange this to write

652 = 5*100 + 5*30 + 2

652 = 5(100 + 30) + 2

652 = 5*130 + 2

so and .

you might be more accustomed to the table depicting the algorithm. that's just a compact way of organizing what we've done above. you can consult the image i've attached below.