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2 years ago

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Mathematics

1 answer:

kvv77 [185]2 years ago

7 0

Answer:

Step-by-step explanation:

$\frac{5}{5} + 6 = 1 + 6$

To solve this you just have to replace the letters with the corresponding numbers. 5/5 = 1 and 1+6 = 7

So your answer is 7!

You might be interested in

Which of the following is a rational number?<br> 22, 23, 24, 25

notka56 [123]

Answer:

i think:)

Step-by-step explanation:

4 0

3 years ago

if you drive 115 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car's

irina [24]

<h2>Answer:</h2>

$63.98

<h2 /><h2>Explanations:</h2>

Accordint to the question, if you drive 115 km per day, the distance covered in a week will be expressed as;

$\begin{gathered} distance\text{ }in\text{ }a\text{ }week=7\times115 \\ distance\text{ }in\text{ }a\text{ }week=805km \end{gathered}$

Convert kilometers to miles

Convert 805km to miles

805km = 500.204miles

Convert miles to gallons

Since 41.0miles = 1 gallon

500.204miles = 12.195gallons

This shows that the total gallons used in a week is 12.195gallons

Convert gallons to litres

1 gallon = 3.78541litres

12.195gallons = 46.163 litres

If the gas costs 1.10 euros per liter, the cost of 46.163 litres will be 50.78 euros (1.10* 46.163)

Assuming that 1euro = 1.26dollars, the amount of money spent on gas for a week in dollars will be (1.26 * 50.78) which is $63.98

500.204miles =

5 0

1 year ago

Phillip departed from town A with coordinates (1, 6) towards town B with coordinates (7, 6). At the same time Bruce headed from

Lana71 [14]

Step-by-step explanation:

First we need to determine the length of the path they're walkin on. We do this with the following equation:

$\sqrt{(x1 - x2)^{2} + (y1 - y2)^{2} }$

Let's fill it in:

$\sqrt{(1 - 7)^{2} +(6 - 6)^{2} } = \sqrt{36} = 6$

They walk 7:5 respectively 7+5=12 so on 6 units they'll walk 12/6=2 so 7/2:5/2=3.5:2.5

3.5 units right from (1,6) is 1+3.5=4.5 which gives us (4.5,6)

6 0

3 years ago

Which percentage is the best estimate for the shaded area under this normal curve?

borishaifa [10]

<h3>Answer: B) 77.5%</h3>

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

Explanation:

It appears that -20 is the mean. It's not entirely clear however. If that assumption is correct, then the distance from -30 to -20 is 10 units. So the left endpoint is 1 standard deviation below the mean (because the standard deviation is 10 units).

Recall that through the empirical rule, roughly 68% of the distribution is within 1 standard deviation of the mean. This cuts in half to 34%. So the area from x = -30 to x = -20 is roughly 0.34

We'll use this value later so let A = 0.34

-------------------

The area under the curve from x = -20 to x = -10 is also 0.34

The area under the curve from x = -20 to x = 0 is 0.95/2 = 0.475

For the second part there, I'm using the idea that 95% of the normal distribution (roughly) is within 2 standard deviations of the mean.

So the area from x = -20 to x = -5 is somewhere between 0.34 and 0.475

Let B = 0.34 and C = 0.475

-------------------

The full shaded blue area is somewhere between A+B = 0.34+0.34 = 0.68 and A+C = 0.34+0.475 = 0.815

Based on that alone, the answer is between B and C.

-------------------

Unfortunately, we can't nail down an actual value unless we use a Z table or a calculator.