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jek_recluse [69]

3 years ago

14

Help me with this question

1 answer:

ch4aika [34]3 years ago

7 0

1. Point (8, 35 ) is on the curve that lead us to: 95th percentile.
2. 20 year old boys, 5th percentile is 165 cm tall.
3. 15 year old boy, 25th percentile, mass= 64 kg.
4. BMI = Mass(kg)/(Height(m))^2, Mass=89 kg, Height=1.85 m
BMI= $\frac{89}{ 1.85^{2} }= \frac{89}{3.4225}=26.004382$
Answer: BMI=26

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Please help me with this math question.

alex41 [277]

Answer:

275 m^3

Step-by-step explanation:

The volume of a triangular pyramid is V=(1/3)Ah, where A is the area of the triangular base and h is the height.

First, let's find A, the area of the base. The area of a triangle is bh/2, where b is the base and h is the height.

In this question, 5 is the base and 15 is the height, so A=5*15/2=75/2.

Now we know A is 75/2, so let's go back to the formula for the volume of a pyramid. We are given h is 22, so

V=(1/3)(75/2)*22=275

5 0

3 years ago

27. If three more than one-fourth of a number is

ololo11 [35]

Answer:

8

Step-by-step explanation:

let the number be n , then

$\frac{1}{4}$ n + 3 = n - 3 ( multiply through by 4 to clear the fraction )

n + 12 = 4n - 12 ( subtract 4n from both sides )

- 3n + 12 = - 12 ( subtract 12 from both sides )

- 3n = - 24 ( divide both sides by - 3 )

n = 8

That is the number is 8

8 0

2 years ago

Kelly purchased 5 containers of ice cream for a party. Each container holds 8 cups of ice cream. Before the party, her brother a

victus00 [196]

Given:

Kelly purchased 5 containers of ice cream for a party.

Each container holds 8 cups of ice cream.

Her brother ate 2 cups of ice cream.

One serving of ice cream = 2/3 of a cup.

To find:

Number of servings of ice cream will be left for the party?

Solution:

We have,

1 container = 8 cups of ice cream

5 containers = 5×8 = 40 cups of ice cream

Her brother ate 2 cups of ice cream. So, remaining cups of ice cream is

$40-2=38$ cups

Now,

$\dfrac{2}{3}$ of a cup = 1 serving

1 cup = $\dfrac{3}{2}$ serving

38 cup = $38\times \dfrac{3}{2}$ serving

= $19\times 3$ serving

= 57 serving

Therefore, 57 servings of ice cream will be left for the party.

4 0

3 years ago

You purchase a cell phone for $125. the value of the cell phone decreases by about 20% annually. write a function at models the

djverab [1.8K]

F(x)=125-(125*0.2x)
to find the value of the phone after 3 years, you put x=3.
f(3)=125-(125*0.2(3))
f(3)=50

5 0

3 years ago

Using the algebraic expression for 4n+6 what is the greatest whole number value of n that will give you a result less than 100

Alex777 [14]

Answer:

8n

Step-by-step explanation:

8 0

3 years ago