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3 years ago

Please help me Look at the image

Mathematics

1 answer:

USPshnik [31]3 years ago

8 0

Answer: 3

Step-by-step explanation: you have to add then you have to subtract s

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My car gets 27 miles per gallon of gas. If I drive 513 miles, how many gallons of gas will I use?

Lisa [10]

513/27 to find your answer

19 and 14/27 is your answer

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3 years ago

5. Solve the following equation for A : 2A/3 = 8 + 4A

denpristay [2]

Answer:

Step-by-step explanation:

Given

$\frac{2A}{3}$ = 8 + 4A

Multiply through by 3 to clear the fraction

2A = 24 + 12A ( subtract 12A from both sides )

- 10A = 24 ( divide both sides by - 10 )

A = - 2.4 → A

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4 years ago

60,000 is one tenth of

Tatiana [17]

600,000 u just have to multiply it by 10

4 0

4 years ago

The distance from the earth to the moon is 3.84 x 105 km

Anarel [89]

Part (a)

<h3>Answer: $3.84 \times 10^8 \text{ meters}$ </h3>

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Explanation:

Multiply by 1000 to go from km to meters.

This is because 1000 m = 1 km.

Multiplying by 1000 in scientific notation means we add 3 to the exponent 5. The 3 is because 1000 = 10^3.

So the $3.84 \times 10^5 \text{ km}$ becomes $3.84 \times 10^8 \text{ meters}$

===========================================================

Part (b)

Answer in standard form: 960,000 seconds

Answer in scientific notation: $9.6\times10^{5} \text{ seconds}$

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Work Shown:

$\text{distance} = \text{rate}*\text{time}\\\\\text{time} = \frac{\text{distance}}{\text{time}}\\\\\text{time} = \frac{3.84 \times 10^8 \text{ meters}}{400 \ \text{ m}/\text{s}}\\\\\text{time} = \frac{3.84 \times 10^8}{4 \times 10^2} \text{ seconds}\\\\\text{time} = \frac{3.84}{4}*\frac{10^{8}}{10^2} \text{ seconds}\\\\\text{time} = 0.96 \times 10^{8-2} \text{ seconds}\\\\\text{time} = 0.96\times 10^{6} \text{ seconds}\\\\$

$\text{time} = (9.6\times10^{-1})\times10^{6} \text{ seconds}\\\\\text{time} = 9.6\times(10^{-1}*10^{6}) \text{ seconds}\\\\\text{time} = 9.6\times10^{-1+6} \text{ seconds}\\\\\text{time} = 9.6\times10^{5} \text{ seconds}\\\\\text{time} = 960,000 \text{ seconds}\\\\$

To go from the scientific notation to standard form, move the decimal point 5 spaces to the right. The 5 is from the exponent.

3 0

2 years ago

Consider the density curve shown.

Naya [18.7K]

Answer:

The mean of the density curve is greater than the median.

Step-by-step explanation:

The distribution is skewed right. So the mean is greater than the median. And of course, the curve is not symmetrical.

7 0

4 years ago