rosypetals06 rosypetals06

20-07-2021
Mathematics

contestada

Avery can sweep the deck in 5 minutes and Madeline can do it in 7 minutes. How long will it take them to do it together?

Respuesta :

musiclover10045 musiclover10045

20-07-2021

Avery in 5 minutes sweeps 1 deck, so in 1 minute she sweeps 1/5 of the deck

Madeline in 7 minutes sweeps 1 deck so in 1 minute she sweeps 1/7 of the deck.

1/5 + 1/7 = 7/35 + 5/35 = 12/35

Together they will sweep 1 deck in x minutes : 1/x

12/35 = 1/x =

X = 35/12 = 2.92 minutes. ( round the answer as needed)

Answer Link

Otras preguntas

Create a real-life representation of the following multiplication problem. Explain what the result represents in the problem. 24(1/3) = 8

Kitchen chairs are purchased wholesale for $36 each by a discount furniture store. Then, the store marks up the chairs by 60 percent. The store has a special sa

Respiratory and infections mouth cancer yellowing of the skin and nails and leukemia are all possible effects of which drugA alcoholB marijuanaC tobaccoD antibi

A survey of 600 randomly selected high school students determined that 290 play organized sports. what is the probability that a randomly selected high school s

A cyclist is stationary when a second cyclist passes travelling at a constant speed of 8 m s−1. The first cyclist then accelerates for 5 s at a constant rate of

Select the correct answer. Rewrite the following equation as a function of x. 680x+10y - 1000 = 0 OA. f(x) = 100 - 68x ○ B. f(x) = 10 + z zx 1 68 OC. f(x) = 100

11. Calculate the weight on earth of an object with a mass of 48 kg. Gravitational acceleration (a) = 9.81 m/s ² Show all steps and formulae used. (3) ✓

Are any factors in the equation of photosynthesis more critical for plants that live on land than for plants that live underwater?

a 5200w electric oven

Charlie is installing new carpet in his rectangular living room, which is 5 feet longer than it is wide. He has received quotes for the total installation costs