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alexandr1967 [171]
4 years ago
14

Amy and Alex are making models for their science project. Both the models are in the shape of a square pyramid. The

Mathematics
2 answers:
Varvara68 [4.7K]4 years ago
6 0

Answer:

128/3 cubic inches

Step-by-step explanation:

The formula for pyramid volume is (1/3)lwh. Using this we can calculate that the volume of each shape is 320/3 cubic inches and 192/3 inches. When these are subtracted, it reads 128/3 cubic inches.

Ksivusya [100]4 years ago
5 0

Answer:

The answer is 42.67 cubic inches.

Step-by-step explanation:

Both the models are in the shape of a square pyramid.

The length of the sides of the base for both the models is 8 inches.

Amy’s model is 5 inches tall and Alex’s model is 3 inches tall.

The volume is given by :

a^{2}\frac{h}{3}

So, Amy's figure volume is :

8^{2}\times \frac{5}{3} = 106.67 cubic inches

And Alex's figure volume is:

8^{2}\times \frac{3}{3} = 64 cubic inches

So, the difference between volumes is = 106.66-64=42.67 cubic inches.

The answer is 42.67 cubic inches.

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Write each number as a product of the GCF and another sum. Then use the Distributive Property to rewrite the sum. 45 + 30 = (15
Lorico [155]

Answer:

x=5/2

Step-by-step explanation:

Calculate, rewrite, remove the paretheses

Collect the like terms

Swap sides 75=30x swap to 30x=75

Then divide both sides

3 0
3 years ago
Help please please please
nalin [4]

Answer:

here's your answer buddy

Step-by-step explanation:

In LMN - LMO

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the above mentioned answer is 100% correct

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8 0
3 years ago
A school employs 75 teachers. The following table summarises their length of service at the school,
Over [174]

There are

12+20+13=45

female teachers, and

8+15+7=30

male teachers.

This means that, out of a total of 75 teachers, 45 are female, leading to a probability of

\dfrac{45}{75}=\dfrac{3}{5}

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If we restrict to those with more than 8 years service, there are 13 female teachers and 7 male teachers.

So, out of a total of 21 teachers, there are 13 female teachers, leading to a probability of

\dfrac{13}{21}

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3 0
3 years ago
I need help with this
Butoxors [25]

Answer:

No solution

Step-by-step explanation:

by criss cross method, 6(x+3) = 6(4+x)

6x+18 = 24+6x

6x-6x = 24-18

0=6 no solution

3 0
3 years ago
What is a 3 2/3 model example?
Annette [7]

I don't have an exact model but this site can help you.


https://learnzillion.com/lesson_plans/7928-use-models-for-division-of-fractions-by-fractions/


I hope this helps you in your studies and have an awesome day!


8 0
3 years ago
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