MATHEMATICS MIDDLE SCHOOL

PLZ HELP!Find the volume of this right triangular prism.

A. 90cm^3
B. 60cm^3
C. 120cm^3
D. 150cm^3
PLZ HELP! Find the volume of this right triangular prism. - 1

Answers

Answer 1
Answer:

Answer:

B. 60cm^3

Step-by-step explanation:

The volume of a right triangular prism is

V = BH  where B is the area of the triangle and H is height

B = 1/2 bh  where b =5 and h =8

B = 1/2 *40 = 20

V = (20) * 3

V = 60 cm^3

We need to be careful to do the area of the triangle first

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8 (40+7) = ( 8. ) + (8 7

A restaurant recorded the number of green salads ordered during lunchtime for five weekdays.What was the mean of the number of green salads ordered each day?

Day Number ordered:

Monday 15
Tuesday 23
Wednesday 14
Thursday 17
Friday 21

Answers

To find the mean add all the numbers and dived by the number of numbers. So 15 + 23 + 14 + 17 + 21 = 90 / 5 =  18. The mean is 18.

the ratio of boys to girls in a class is 7 to 11. if there are a total of 49 boys in the class , then how many boys and girls are there altogether ?

Answers

Answer:

There are 77 girls in the class when there are 49 boys.

Answer:

126 students

Step-by-step explanation:

Boys : Girls

7 : 11

How do you get from 7 to 49?

49 ÷ 7 = 7

Therefore, you should multiply the number of boys by 7.

Multiply:

7 : 11

7 × 7 = 49

49 : 11

Remember that whatever we do to the left, do to the right.

Multiply:

49 : 11

11 × 7 = 77

49 : 77

Now, let's add the number of boys and girls in the class to find the total number of students.

Add:

49 + 77 = 126

Therefore, there are 126 students in all.

The median for 49,32,67,55,58

Answers

To find the median you need to order all the number. From the lowest to the highest and then find the middle number which is 55.
the median is the middle number when you order all the numbers. ordering the number gives the list:
32, 49, 55, 58, 67
we can see that the middle number is 55 so that's the median.
if there are an even number of terms then there is no middle, in that case you take the average of the 2 middle numbers and call that the median.

let me know if you have any questions!!!!

Marco got a quotient of 70 when he divided 49 by 0.07. Part A
What is the correct answer for this problem? (SHOW WORK)
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Part B
What mistake did Marco make? (SHOW WORK)
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Answers

The correct answer for this problem is 700. This is because 0.07 is in the hundredths place. Marco got it wrong because he didn't count the place correctly. 

Read the following table. Answer the question with Numbers Only.

Answers

Answer:

15

Step-by-step explanation:

If you try to find how many times 3 goes into 45, it would be 15. Same thing with 6 and 90 and 8 and 120, they would all be 15.

1/4 to 1/2 find the percent of change-increase or decrease

Answers

The percent of change would be -33.3% which would then equal a 33.3% decrease (when decimal is rounded) 

what I did was turn 1/4 and 1/2 into decimals to make it easier to solve 
It's a decrease 1/4 to 1/2 is a decrease
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