All categories

3 years ago

As an estimation we are told 5 miles is 8 km. Convert 27.4 miles to km.

Mathematics

2 answers:

kicyunya [14]3 years ago

7 0

Answer:

43.8 km to the nearest tenth.

Step-by-step explanation:

5 miles is 8 km

so 1 mile = 8/5 km

and 27.4 miles = 27.4 * 8/5

= 43.84 km

Marizza181 [45]3 years ago

7 0

Good morning ☕️

Answer:

Step-by-step explanation:

let x represent the unknown number of kilometers

Here we notice that the number of miles and the number of kilometers varie proportionally Which means :

$\frac{8}{5} =\frac{x}{27.4}$

then

5x = 27.4×8

then

5x = 219.2

hen

x = 219.2÷5

= 43.84

______________________

You might be interested in

WILL GIVE BRAINLIEST!!!

Slav-nsk [51]

$\text{Consider the function}\\
\\
f(x)=6x^3-3\\
\\
\text{let }y=f(x), \text{ so we have}\\
\\
y=6x^3-3\\
\\
\text{now in order to find the inverse of the function, first we interchange x and y}\\
\text{so we get}\\
\\
x=6y^3-3$

$\text{now we will solve for y again and that will give the required inverse function.}\\
\text{so first we add 3 both sides to get}\\
\\
x+3=6y^3\\
\\
\text{now divide both sides by 6 to get}\\
\\
\frac{x+3}{6}=y^3\\
\\
\text{now take cube root both sides to get}\\
\\
\sqrt[3]{\frac{x+3}{6}}=\sqrt[3]{y^3}$

$\Rightarrow \sqrt[3]{\frac{x+3}{6}}=y\\
\\
\Rightarrow y=\sqrt[3]{\frac{x+3}{6}}\\
\\
\text{hence the inverse of the function is: }\\
\\
f^{-1}(x)=\sqrt[3]{\frac{x+3}{6}}$

4 0

3 years ago

Read 2 more answers

The size of a television screen is given by the length of its diagonal. What is the size of a television that has a width of 36

adelina 88 [10]

You need to use the Pythagorean theorem for this. Take the square root of (48^2 + 36^2). This will give you the length of the diagonal.

48^2 + 36^2 = 3600

Remember we need to take the square root of 3600, which is just 60.

The length of the diagonal is 60 inches.

7 0

3 years ago

Read 2 more answers

50+30 x12 20 POINTS GUYS YESSSSSSSSSSSSSSSSSSSSSSS

daser333 [38]

Answer:

960

Step-by-step explanation:

50+30= 80

80x12=960

8 0

3 years ago

Read 2 more answers

What percent of 17 is 3?

Vikki [24]

Answer: 3 is 17.6471% of 17

Step-by-step explanation:

4 0

1 year ago

The ability to find a job after graduation is very important to GSU students as it is to the students at most colleges and unive

sergejj [24]

Answer:

Step-by-step explanation:

Using the formula

p +/- z* √(p(1-p) / n)

Where p is sample proportion = 3226/3957 = 0.8153, n = 3957 and z* is 2.576

0.8153 + (2.576 √(0.8153(1-0.8153) / 3957))

0.8153 + (2.576 √ (0.8153(0.1847) /3957)

0.8513 + (2.576 √(0.1572/3957)

0.8513 + (2.576 √0.00003974)

0.8513 + 2.576(0.0063)

0.8513 + 0.016

0.8670 ~ 87%

For the lower interview

0.8513 - 0.016

= 0.8353 ~ 84%

Thus, at 99% confidence interval is 84% and 87%

7 0

3 years ago