2 years ago

Help me i need help ok try to explain and ok ok ok ok ok ok ok ok

Mathematics

1 answer:

Kaylis [27]2 years ago

7 0

Question 9

18, 28, 6, 54

Question 10

Correct Number: 5

Incorrect Number: 6

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A tv has height ratio 3:4. In a scale drawing the height is 4.5cm what would the width be?

Amanda [17]

4.5 ÷ 3 = 1.5
This means that the ratio has increased by 1.5

Since anything multiplied on one side of a ratio has to be multiplied on the other side too, we multiply 1.5 by 4:
1.5 X 4 = 6

The width would be 6cm

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2 years ago

Plz help me!!!! What's the answer in decimal form?

marysya [2.9K]

When I did the math in my head the fraction I got was 20/100000. 20/100000 as a decimal form is 0.0002.

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2 years ago

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Can someone help me pls

Wittaler [7]

Answer:

3 cm

Step-by-step explanation:

$V_{cylinder} = 189\pi \: cm^3$ (Given)

$h_{cylinder} = 21\: cm$ (Given)

Formula for $V_{cylinder}$ is given as:

$V_{cylinder} = \pi r^2h$

$\implies 189\pi = \pi r^2(21)$

$\implies \frac{ 189\pi}{21\pi} = r^2$

$\implies 9 = r^2$

$\implies \pm\sqrt 9 = r$

$\implies \pm 3 = r$

Length of radius can not negative

$\implies r = 3 \: cm$

Hope it helps you in your learning process.

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2 years ago

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A runner can travel 100 meters in 20 seconds. At that rate, how far does the runner go in 1 minute?

dimaraw [331]

Answer:

he can run 5 meters in 1 min

Step-by-step explanation:

S = d/t

S=100m/20s

S=5m/s

8 0

2 years ago

What is p equal to? Also if you could, can you tell me how you do it so I can do the rest by myself.

svp [43]

Answer:

p=-54

Step-by-step explanation:

$- \frac{p}{6} = 9 \\ \frac{ - p}{6} = 9 \\ \frac{ - p}{6} \times 6 = 9 \times 6 \\ - p = 54 \\ p = - 54$

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3 years ago

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