‏It takes Daniel 3 times as long as It takes Jennffer to plant an acre of com. If they decide to work together, write an equation that represents the relationship between th Joint and individual efforts.

Expression of the work when doing jointly- 3/4 x

Individually - Jennffer would take "x" units of time

Daniel would take "3x" unit of time

Step-by-step explanation:

Let us assume that jennfer takes “x” unit of time  

Hence Daniel would take 3 times more times (provided in the question) = “3x”

Efficiency= Mathematically efficiency can be defined as inverse of the time taken to do the work. More is the time taken, less would be the efficiency and vice versa

Please refer to the image attached with for the calculation part

Hence, when doing work jointly, both take ¾ of the time taken by jennfer to do the work

When individually-

Jennfer takes “x” and Daniel “3x” units of time

answer: 590

step-by-step explanation:

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2