oriannamaramara oriannamaramara

15-03-2018
Mathematics

contestada

The probability that you randomly select a red marble from a group of 40 marbles is 7/20. how many are red marbles

Respuesta :

ruhibreddy ruhibreddy

15-03-2018

Since probability is number of red by the total number, we need to set the fraction to have a denominator of 40:

7/20 * 2/2
14/40

So, there are 14 marbles.

Hope this helps!

Answer Link

Otras preguntas

what is the value of 3 in 136,422

do bigger organisms have bigger cells what kind of test could you do to answer this

56 out of 154 in simplest form of a fraction

A student weighs a container and then adds air. When the student weighs the container again the weight will be: a.less b.more than c.the same

solve each quadratic equation by factoring. 6n^2-18n-18=6

2.8+5 1/6 answer as a decimal

a 15% tip to represents the ratio $0.15 to 100 cents. why does this make 15 percent a unitless Factor

14 gal/s =_qt/minutes

how does biodiversity depend on a species' ability to reproduce

ENG103 DISCUSSION BOARD 3 Take some time to use the various search engines discussed in Lesson Two. Choose a topic of your liking and use Bing (common sear