Three hundred high school seniors were surveyed about their intended college majors. The results are displayed in the Venn Diagram below.If a student is randomly selected from the group, what is the probability that they are majoring in both math and science? Round your answer to the nearest whole percent.

A) 10%
B) 17%
C) 33%
D) 40%

Answers

Answer 1
Answer: The sample space of the problem is 300 while the U' is equal to 100 as given. The given diagram also shows A and B separately so we can determine the part where the two coincides. The equation goes 
120 + 50 + x + 100 = 300x = 30
Hence the probability is 30/ 300 or 10%

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Tom Brown decided to purchase a new bike on an installment loan. The bike was $300.00. He agreed to pay $30 a month for 12 months. What is the finance charge in dollars?The finance charge is

Answers

The answer is $60. $30 × 12 = $360 – $300 = $60.

A strip of wood 78 inches long is to be cut into pieces 3 3/4 inches long. How many pieces can be cut? A. 21
B. 20
C. 26
D. 12

Answers

Answer:

Option B. 20 pieces

Step-by-step explanation:

The length of a strip of wood  = 78 inches

This strip of wood is to be cut into pieces = 3(3)/(4) inches

We have to calculate how many pieces can be cut.

So first we convert mixed fraction to proper fraction and then to decimal.

3(3)/(4) =  (15)/(4) = 3.75 inches

Now we divide 78 inches to 3.75 inches.

78 ÷ 3.75 = 20.8 pieces

we got 20 pieces of  3(3)/(4) inches.

Option B. 20


B. 20 (do 78 divided by 3.75 (3 3/4) and that equals 20.8)

One health club charges a $50 sign-up fee and $65 per month. James spends a total of $635 for his gym membe Write an equation that will determine the number of months, m, James had his membership

Answers

Answer: James had his gym membership for approximately 9 months.

Step-by-step explanation: To determine the number of months, m, James had his membership, we can set up an equation based on the given information.

The total cost of James' gym membership consists of two parts: the sign-up fee of $50 and the monthly fee of $65 multiplied by the number of months, m.

Therefore, the equation is:

Total cost = Sign-up fee + Monthly fee * Number of months

In this case, the total cost is $635, the sign-up fee is $50, and the monthly fee is $65. We want to find the number of months, which we will represent as m.

Plugging in the values, the equation becomes:

635 = 50 + 65m

Simplifying further:

635 - 50 = 65m

585 = 65m

To solve for m, we can divide both sides of the equation by 65:

m = 585 / 65

Calculating this division, we find:

m ≈ 9

If 8+4= 12 then 12 =?

Answers

Answer:

Step-by-step explanation:

if 8 + 4 = 12

12= 4 + 8

If 8+4=12 then 12=? It equals 12.

This problem is kinda hard can you help me

Answers

Answer:

B - 5

Step-by-step explanation:

K: 60

M: 60 x 25%; 60 x .25 = 75

K: 1500/60 = 25

M: 1500/75 = 20

25-20=5

About what percentage of the data lies within 2 standard deviations of the mean in a normal distribution?

Answers

we should do the whole math calculation, but for ease, we know that the percentage contained within 2 std deviations of a normal distribution is:
= 2(13.6) + 2(34.1)
= 95.4%

Answer:

95%

Step-by-step explanation:

:))