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aksik [14]
3 years ago
15

O carro da Vivi faz 500 km com um tanque de capacidade igual a 40 litros de combustível. Considerando esse consumo, quanto Vivi

gasta por dia para ir e voltar de sua casa ao seu trabalho, que dista 18km um do outro, abastecendo em um posto que custa R$ 5,30 o litro de combustível?
Mathematics
1 answer:
Oliga [24]3 years ago
5 0

Here we have an algebraic problem. We will find that the cost of the gas is R$16.26

Here we know that a car can travel 500km with 40L of gas.

Then we want to know how much costs to travel 36km (18 km two times), if each L of gas costs R$ 5,30.

First, we need to find how much the car can travel with 1L of gas.

To see this, we take the quotient between the distance we know it can travel with 40L of gas, we get:

500km/40L = 12.5 km/L

Now we know that the car travels 12.5 km per liter of gas.

Now let's define a variable X, which is the amount of gas that the car needs to travel 36km, we can write:

(12.5km/L)*X = 36km

Now we solve this for X:

X = (36km)/(12.5km/L) = 2.88 L

And we know that each liter costs R$ 5,30, then the cost of 2.88L is:

2.88*R$ 5,30 = R$16.26

She spends R$16.26 on gas.

If you want to learn more, you can read:

brainly.com/question/24519906

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The results of a series of surveys revealed a population with a mean of 4.73 and a standard deviation of 0.865. If each survey h
satela [25.4K]

The given sample's confidence interval is 4.73 ± 0.1199, or from 4.61 to 4.85

<h3>What is the z score?</h3>

The z-score is a numerical assessment of a value's connection to the mean of a set of values, expressed in terms of standards from the mean, that is used in statistics.

Given data;

Mean  = 4.73

Standard deviation  = 0.865

Sample size  = 200

interval  = 95%

Confidence interval=?

95% of samples contain the population mean (μ) within the confidence interval of 4.73 ± 0.1199.

Hence, the sample's confidence interval is 4.73 ± 0.1199, from 4.61 to 4.85

To learn more about the Z score, refer to;

brainly.com/question/15016913

#SPJ1

4 0
2 years ago
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
Citrus2011 [14]
It is 3x=4. If u need anymore help then that is cool
4 0
2 years ago
Read 2 more answers
Order from greatest to least.<br> 0.386,0.3,0.683,0.836
lisabon 2012 [21]

Answer:

Greatest to least is 0.836 ,  0.683, 0.386 ,  0.3.

Step-by-step explanation:

Given  : 0.386; 0.3; 0.683; 0.836.

To find : which Is greatest to least.

Solution :" We have given 0.386; 0.3; 0.683; 0.836.

In 0.386

Tenth place is 3 and hundredth place is 8

In 0.3

Tenth place is 3 and hundredth place 0

In 0.683

Tenth place is 6 and hundredth place 8

In 0.836.

Tenth place is 8 and hundredth place 3.

So, Greatest number is 0.836 ,

Least number is  0.3.

Therefore, Greatest to least is 0.836 ,  0.683, 0.386 ,  0.3.

3 0
3 years ago
Read 2 more answers
Based on this stock price model, what is the best prediction of what the price will do next?
andrew11 [14]
Go up. This is because the stock price is going up.
7 0
2 years ago
Someone plz help plz
Greeley [361]

Answer: 22

Step-by-step explanation:

I’m not sure if hats number  is a 5.50 but if it is the answer would be 22 I think ^^  I might be wrong?

5 0
3 years ago
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