Question

Toula observed the number of times she saw a red car, white car and blue car pass by an intersection. She kept a tally of these colours and ignored all other colours. Out of 219 cars, there were 13 more white cars than red cars, and the number of blue cars was 2/3 the number of white cars. What was the most popular colour, and how many did Toula see of that colour?

Answer: white; 87 (want to know who to work this question out)

Answer 1

You need to set up the problem in terms of one of the unknowns. In this case the white car is the common unknown. So, you can set up the following:

Let w=white car
Let r=red car=w-13 since there are 13 fewer red cars than white ones
Let b=blue car=2/3w since the blue cars are 2/3 of the white ones

Now use the above three set-ups in an equation that equals the total number of cars and solve.

Answer 2

Use a tree diagram to explain why the probability that a family with four children had 2 girls and 2 boys is 38, assuming that the probability of having a b

Answer 3

Use a tree diagram to explain why the probability that a family with four children had 2 girls and 2 boys is 38, assuming that the probability of having a b

Answer 4

What is the probability of rolling a die with the sum greater than or equal to 5?

Answer 5

Data Management (probability):
The Leafsu2019 coach stated that u201cthe likelihoodof us winning the next game are 2/9, the likelihood of tying the next ga

Answer 6

Data Management: A jury of 12 people is to be chosen randomly from a list containing 10 men and 12 women.

Answer 7

CALCULUS: solve \[\huge{\int\sin^{p-1}\theta d\theta}\]

Answer 8

Choose the correct answers.

Suzie Speedy is insured for bodily injury in the amount of 10/20.

Answer 9

The graph below shows the relationship between the number of cookies made and the number of pans used:

A graph is shown.

Answer 10

Stella set up a business washing cars. She earned $80 in March. She is projected to earn 130% more in April.

Answer 11

Check please
http://prntscr.com/k8xotl

Answer 12

What is one purpose of Samuel Thurston's article?

Answer 13

Steve needs to take at least 24 milligrams of calcium, 15 milligrams of iron, and 16 milligrams of vitamins.

Answer 14

After years of overhunting, environmental scientists have reintroduced wolverines to Yellowstone National Park.

Answer 15

Which of the following scenarios would be most likely to characterize the individual in the blue shirt?
He is an apprentice training to learn a trade.

Answer 16

Hemophilia is a gender-linked blood disorder in humans. The gene responsible for it is gene-linked recessive, meaning it is present on the X chromosome.

Answer 17

Prompt
Write a short script (15u201320 lines) that creates an imagined scene between two or three characters.

Answer 18

A coalition of justices is
a.
a per curiam.
c.
a voting bloc.
b.
a swing vote.
d.
an amicus curiae.

Answer 19

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A.

Answer 20

Which condition is a population that descended from a small number of common ancestors more likely to have?

A.

Answer 21

Which mechanism decreases the number of genetic variations in a population?

A.

founder's effect

B.