note2sethw note2sethw

02-01-2019
Mathematics

contestada

mary goes running each day. in 3 hours she runs a total of 7 miles. how many miles does she run in 1 hour

Respuesta :

offguard offguard

02-01-2019

Simply set up a proportion: hours/miles=hours/miles

3/7=1/x.

Cross multiply to get 3x=7. Divide by 3 to get 7/3.

Therefore, Mary runs 7/3 miles in an hour.

Answer Link

Otras preguntas

How did Jackie Robinson feel about peraonal dignity?

Which object has the least momentum? object a: m = 1 kg, v = 100 m/s object b: m = 10 kg, v = 12 m/s object c: m = 0.5 kg, v = 1000 m/s object d: m = 100 kg, v

What number should be added to the expression x2 + 12x to change it into a perfect square trinomial? (a.6 ( b.18 (c.12 (d.36

Conduction, convection or radiation

The rectangle below has an area of x^2-11x+30 sq meters and a length of x-5 meters. What expression represents the width of the rectangle?

Regina has started making baby quilts to sell at a craft fair. The inside of each quilt will measure four feet by five feet and will be surrounded by a border o

what was Gatsby's american dream

What is the molar mass of NaCl ?

On a farm 4 1/2 out of every 15 acres of the land are used to grow crops. Wheat is grown on 5/8 of the land used to grow crops. What percentage of the total are

When a common type of basaltic lava hardens, it forms aa, which has A. a surface made of cinders. B. a smooth surface that is wrinkled. C. a rough,