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3 years ago

Read the problem and answer question 4 and 5 i’ll give brainliest.

Mathematics

2 answers:

erastova [34]3 years ago

7 0

Answer:

samanthas i believe

Step-by-step explanation:

Ronch [10]3 years ago

5 0

I also think it’s Samanthas

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4 The ratio of corresponding dimensions of two similar solids is 3/4. The surface

White raven [17]

4.

The ratio is 3/4 for corresponding dimensions, the ratio of their surface areas is equal to the square of this ratio:

$\sf (\dfrac{3}{4})^2=\dfrac{S}{96}$

Simplify the exponent:

$\sf \dfrac{9}{16}=\dfrac{96}{S}$

Cross multiply:

$\sf 9S=1536$

Divide 9 to both sides:

$\sf S\approx 170.7~m^2$

So the surface area of the second solid is 54 square meters.

The ratio is 3/4 for corresponding dimensions, the ratio of their volumes is equal to the cube of this ratio:

$\sf (\dfrac{3}{4})^3=\dfrac{720}{V}$

Simplify the exponent:

$\sf \dfrac{27}{64}=\dfrac{720}{V}$

Cross multiply:

$\sf 27V=46080$

Divide 64 to both sides:

$\sf V\approx 1706.7~m^3$

5.

A globe is a sphere, use the formula for the volume of a sphere:

$\sf V=\dfrac{4}{3}\pi r^3$

The radius is half of the diameter, so the radius here is 40/2 = 20. Plug it in the formula, use 3.14 to approximate for Pi:

$\sf V=\dfrac{4}{3}(3.14)(20)^3$

Simplify the exponent:

$\sf V=\dfrac{4}{3}(3.14)(8000)$

Multiply:

$\sf V\approx \boxed{\sf 33,493~in^3}$

6 0

4 years ago

Read 2 more answers

If p=5 and q=6, evaluate the following expression:2p+3q/4

suter [353]

Answer:

Step-by-step explanation:

Substitute in numbers : 2(5)+3(6) /4

Combine Like Terms : 10+18/4 = 28/4

Answer : 7

8 0

3 years ago

Find the value of each variable and the measure of each labeled angle.<br> Explain your answer.

Mademuasel [1]

Answer:

(3x + 8) = 50

(5x - 20) = 50

(5x + 4y) = 130

Step-by-step explanation:

3x + 8 = 5x - 20

2x = 28

x = 14

5(14) + 4y + 5(14) - 20 = 180

y = 15

3 0

3 years ago

258 divided by 6. divide using partial quotients

AlexFokin [52]

Answer:

Partial quotient (not shown)

258÷6=42

8 0

3 years ago

Water and orange squash is mixed in the ratio 11 : 2 Find how much water is needed to dilute 240 cl of orange squash

PIT_PIT [208]

Answer: 1,320 cl

Step-by-step explanation:

Water and orange squash are mixed in the ratio 11 : 2.

This means that at their simplest if using cl, it would take 11cl of water and 2 cl of orange squash for a proper dilution.

If 240 cl of orange sqaush is used and you need to find the amount of water, use direct proportion with x as water.

11 : 2

x : 240

Cross-multiply:

2x = 11 * 240

x = 2,640 / 2

= 1,320 cl

7 0

3 years ago