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3 years ago

Students rented buses and vans to go to a hockey game. There were 8 vans and 12 buses for 360 students.

Mathematics

1 answer:

scoundrel [369]3 years ago

8 0

Answer:

A: 8v+12b=360

V= van

B= Bus

B: Each van=9

Need to ride in vans:72

Step-by-step explanation:

12 buses 24 in each bus that equals 288. 360-288=72

and if you need to know how many are in each van you divide 72 by the number of vans that would be 9 per van.

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Rory earned an 84% on his test. He answered 21 questions correctly. How many total questions were on the test? Round to the near

Free_Kalibri [48]

Answer:

25 questions

Step-by-step explanation:

84%*x = 21

-simplify-

0.84 *x = 21

Divide both sides by 0.84 than...

you get x = 25

6 0

3 years ago

Of 24 employees at a local supermarket, 13 work as cashiers and 11 stock shelves. If 4 employees are selected at random to work

kenny6666 [7]

Answer:

The required probability is, $\simeq 0.06729$

Step-by-step explanation:

Of 24 employees at a local supermarket, 13 work as cashiers and 11 stock shelves. If 4 employees are selected at random to work overtime, then

P( all 4 are cashiers) = $\frac{^{13}{C}_{4}}{^{24}{C}_{4}}$

$\simeq 0.06729$

4 0

3 years ago

Read 2 more answers

Can someone help me please it is from numbers 16 to 19 please someone

TiliK225 [7]

The correct answers are:

16) Mean = 10.25; Median = 10; Range = 17
17) The range.
18) 10
19) 5+5+6+6+7+8+8+8+9+9+10+10+10+10+10+11+12+12+12+13+13+15+15+22 = 246.

Explanation:

16) To find the mean, we first find the sum of the data values in the set:
5+5+6+6+7+8+8+8+9+9+10+10+10+10+10+11+12+12+12+13+13+15+15+22 = 246.

Next we divide this sum by the number of data points, 24:
246/24 = 10.25.

The median is the middle point of a data set. Since there are 24 points, this will be between two values. These two values are 10 and 10; the median is 10.

The range is found by subtracting the highest and lowest values:
22-5 = 17.

17) The mean is changed; the sum of the data values is 246. Taking 22 out of this, the sum is now 223, and we have 23 data points instead of 24; 223/23 = 9.7 for the new mean.
The median does not change; it is still 10.
The range changes; the highest value is now 15, and the lowest is 5: 15-5=10. The range is changed the most.

18) The mean is affected by the outlier and the median is not, so we use the median. This means the answer is 10.

19) The expression for the total number of cars sold is found by adding together all of the points.

6 0

3 years ago

At a local restaurant the health inspector visits every 7 days and the fire inspector every 12 days

Masja [62]

Two visits are from the fire inspector and four visits are from the health inspector in 30 days both inspectors will visit on the same day

6 0

3 years ago

Dianna and Becky were playing on the same soccer team and took turns being goalie. They stoped 9 out of 10 shots made against th

vitfil [10]

Answer:

27 balls

Step-by-step explanation:

If Dianna and Becky stopped 9 out of 10 shots made against them.

It means they allowed in 1 out of 10 shots made against them.

This is best solved using ratios

Proportion of Shots Stopped : Proportion of Shots allowed=9:1

If the other team scores 3 points, it means the number of shots allowed =3

Let x be the number of shots stopped

Number of Shots Stopped : Number of Shots allowed=x:3

Therefore:

9:1=x:3

$\frac{9}{1}=\frac{x}{3}$

Cross multiplying

x=9 X 3 =27

Dianna and Becky stopped 27 balls from going into the net,

6 0

3 years ago