Bethany can mow her family’s lawn in 4 hours. her brother colin can mow the lawn in 3 hours. which equation can be used to find x, the amount of time it would take for bethany and colin to mow the lawn together?

1/4 + 1/3 = 1/x

Step-by-step explanation:

"Bethany can mow her family’s lawn in 4 hours."

In 1 hour, she does 1/4 of the job.

"Her brother Colin can mow the lawn in 3 hours."

In 1 hour, he does 1/3 of the job.

When they work together, in 1 hour they do 1/4 + 1/3 of the job.

When they work together, they can mow the lawn in x hours.

In 1 hour, they do 1/x of the job. This means that 1/4 + 1/3 must equal 1/x.

1/4 + 1/3 = 1/x

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.

really your just stupid if you don't know this

step-by-step explanation: