x+5=-17

x=-17-5

x=-22

x=-17-5

x=-22

Question

asked 2021-03-07

A family is canoeing downstream (with the current). Their speed relative to the banks of the river averages 2.75 mi/h. During the return trip, they paddle upstream (against the current), averaging 1.5 mi/h relative to the riverbank.

a. Write an equation for the rate of the canoe downstream.

b. Write an equation for the rate of the canoe upstream.

c. Solve the system to find the family’s paddling speed in still water.

d. Find the speed of the current of the river.

a. Write an equation for the rate of the canoe downstream.

b. Write an equation for the rate of the canoe upstream.

c. Solve the system to find the family’s paddling speed in still water.

d. Find the speed of the current of the river.

asked 2021-02-25

\(\displaystyle{\left(\frac{{5}}{{8}}\right)}+{\left(\frac{{11}}{{12}}\right)}\)

asked 2020-12-25

A standard piece of paper is 8.5 inches by 11 inches. A piece of legal-size paper is 8.5 inches by 14 inches. By what scale factor k would you need to dilate the standard paper so that you could fit two pages on a single piece of legal paper?

asked 2020-12-07

\(\displaystyle{\left({2.66}×{10}^{{13}}\right)}÷{\left({9.5}×{10}^{{5}}\right)}\)

asked 2020-11-12

In August, Sports Depot had an average retail inventory of $145,256 and retail sales of $645,320. Find the stock turnover at retail.

asked 2021-01-05

Given:

\(\displaystyle{b}=\frac{{3}}{{4}}{a}\)

a+b=21

Find a and b

\(\displaystyle{b}=\frac{{3}}{{4}}{a}\)

a+b=21

Find a and b

asked 2021-02-25

Expand the equation:

(x+2)(x+3)

(x+2)(x+3)

asked 2021-02-25

An empty tank for storing water from a borehole has a volume of 480 m³. If it is filled by a pump that pumps water at a rate of 16 l/s, how many hours will it take the pump to fill this tank?

asked 2021-01-06

Saw a board 8 ft 4 in. long into nine equal pieces. If the loss per cut is 1/8 in., how long will each piece be?

asked 2021-02-21

8 b + 12 = 52