If the rate of the boat in still water is 22 mph, and the rate of the current of a river is x mph, what is the rate of the boat in each case? a) The boat is going upstream (that is, against the current, which slows the boat down.)
b) The boat is going downstream that is, with the current, which speeds the boat up.)
a) The rate of the boat when the boat is going upstream is
mph
b) The rate of the boat when the boat is going downstream is
mph.
Enter your answer in each of the answer boxes.
cm

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet