Since 17/20 are red, then 1-(17/20)=20/20=3/20 are blue. This is equivalent to the decimal 0.15 or in percentage, 15%

Question

asked 2020-11-26

A bag contains 6 red, 4 blue and 8 green marbles. How many marbles of each color should be added so that the total number of marbles is 27, but the probability of randomly selecting one marble of each color remains unchanged.

asked 2020-11-12

Jana divided a sheet of paper into 5 equal sections and colored 2 of the sections red. What percent of the paper did she color?

asked 2021-02-05

A chef has one cheese that contains 45% fat and another cheese that contains 20% fat. How many grams of each cheese should she use in order to obtain 30 grams of a cheese mixture that is 30% fat?

asked 2021-02-19

R.A. Moyer of lowa State College found. in comprehensive tests carried out on 41 wet pavements, that the braking distance d(in feet) for a particular automobile traveling at v miles per hour was given approximately by

\(d=0.0212v^{\frac{7}{3}}\)

Approximate the braking distance to the ncarest foot for the car traveling on wet pavement at 70 miles per hour.

\(d=0.0212v^{\frac{7}{3}}\)

Approximate the braking distance to the ncarest foot for the car traveling on wet pavement at 70 miles per hour.

asked 2020-10-20

Lisa spends 3 hours driving to and from work each work day. What percent of her day does she spend driving to and from work, each work day?

asked 2021-01-08

Which of these are propositions? What are the truth values of those that are propositions? a) Do not pass go. b) What time is it? c) There are no black flies in Maine. d) 4 + x = 5. e) The moon is made of green cheese. f) \(\displaystyle{2}≥{100}\). g) Kochi is the capital of Kerala state. h) 2 + 3 = 5. i) 5 + 7 = 10. j) Answer this question.

asked 2020-12-22

A bag contains 2 red checkers and 6 black checkers. A checker is selected, kept out of the bag, and then another checker is selected. What is P(black, then red)?

asked 2020-12-30

A ream of paper contains 500 sheets of paper. Norm has 373 sheets of paper left from a ream. Express the portion of a ream Norm has as a fraction and as a decimal.

asked 2020-10-28

Luis and raul are riding there bicycles to the beach from their respective homes. Luis proposes that they leave their respective homes at the same time and plan to arrive at the beach at the same time. The diagram shows Luis position at two points during his ride to the beach. Write an equation in slope intercept form to represent Luis's Ride from his house to the beach. If raul lives 5 miles closer to the beach than Luis, At what speed must Raul ride for the plan to work?

asked 2021-01-05

The IRS reported that as of April 17, 2015, it had received 132 million tax returns for 2014. Of these, 90% were filed electronically. How many of the returns were filed electronically? Round to the nearest million.