All categories

4 years ago

Find an equivalent fraction for the decimal number.

Mathematics

2 answers:

4vir4ik [10]4 years ago

6 0

Answer:

The correct option is c) 9/20

Step-by-step explanation:

Consider the provided number: 0.45

Now, we need to find the equivalent fraction for the number 0.45

Convert the above number into fraction as shown:

First identify the numbers after the decimal point. There are two numbers after a decimal point.

Write the provided number with out decimal as shown:

$\frac{45}{1}$

Now, add 2 zeros in the denominator of the above number.

$\frac{45}{100}$

45 and 100 both the numbers are divisible by 5. Therefore, the above number can be written as:

$\frac{9}{20}$

Hence, the correct option is c) 9/20

USPshnik [31]4 years ago

3 0

.45 is just 45/100. divide both numbers by 5 to get 9/20.

You might be interested in

The point slope form of the equation of the line that passes through (-5-1) and (10.-7) is

Natalka [10]

Answer:

The standard form of the equation for this line can be:

l: 2x + 5y = -15.

Step-by-step explanation:

Start by finding the slope of this line.

For a line that goes through the two points $(x_0, y_0)$ and $(x_1, y_1)$ ,

$\displaystyle \text{Slope} = \frac{y_{1} - y_{0}}{x_{1} - x_{0}}$ .

For this line,

$\displaystyle \text{Slope} = \frac{(-1) - (-7)}{(-5) - 10} = -\frac{2}{5}$ .

Find the slope-point form of this line's equation using

$\displaystyle \text{Slope} = -\frac{2}{5}$ , and
The point $(-5, -1)$ (using the point $(10, -7)$ should also work.)

The slope-point form of the equation of a line

with slope $m$ and
point $(x_{0}, y_{0})$

should be $l:\; y - y_{0} = m(x - x_0)$ .

For this line,

$\displaystyle m = -\frac{2}{5}$ , and
$x_0 = -5$ , and
$y_0 = -1$ .

The equation in slope-point form will be

$\displaystyle l:\; y - (-1) = -\frac{2}{5}(x - (-5))$ .

The standard form of the equation of a line in a cartesian plane is

$l: \; ax + by = c$

where

$a$ , $b$ , and $c$ are integers. $a \ge 0$ .

Multiply both sides of the slope-point form equation of this line by $5$ :

$l:\; 5 y + 5 = -2x -10$ .

Add $(2x-5)$ to both sides of the equation:

$l: \; 2x + 5y = -15$ .

Therefore, the equation of this line in standard form is $l: \; 2x + 5y = -15$ .

7 0

3 years ago

the total narks of 10 books is 32.64kg. The books have equal mass.Calculate the mass of each book in kilograms

mr Goodwill [35]

Answer:

3.264 Kilograms

Step-by-step explanation:

Divide: 32.64 divided by 10=3.264

Hope this helped!! :)

Stay safe and have a wonderful day/night!!!!!

Brainliest?!?!

3 0

3 years ago

Estimation Rita goes to the mall. If x is the number of items she bought, the expression 18.54x+23 gives the amount she spent i

miv72 [106K]

Answer:

18.54x +48
$85

Step-by-step explanation:

The total amount Rita spent is ...

(18.54x +23) +(25) = 18.54x +48 . . . total spent

When x=2, that is approximately ...

(18.5)(2) + 48 = 37 +48 = (40 -3) +(50 -2) = (40 +50) -(3 +2) = 90 -5 = 85

Rita spent about $85 if she bought 2 items.

_____

<em>Additional comment</em>

Estimation is often done using 1 significant figure. In this case, that would mean rounding the equation to 20x+50, so it would give a value of 90 when x=2.

An additional task when estimating is to estimate the error in the estimate. Here, using 20x+50 has an error of approximately 1.5x+2 (too high), so the error for 2 items will be about (1.5(2)+2) = 5. That is, the estimate of 90 is approximately 5 too high. Even this estimate has a remaining small error of 0.04x (too low).

8 0

3 years ago

What the surface area of the regular square pyramid?is (Figure is not drawn to scale.)7 cm9 cm A) 120.5 cmo B) 144 cm C) 207 cm

Sindrei [870]

The answer is C. 207 cm. The formula to find the area of a triangle is 1/2 base times height. So the base is 9cm and the height is 7cm. Multiply them and you get 63, but you have to divide by 2 because the formula so you get 31.5 cm. Multiply that by 4 because there are four triangles. So you get 126 cm. Then to find the area of the square, you do s times s. Side times side so 9 times 9 is 81. Add the 81 and 126 together and your answer is 207. hope i helped ya!!

6 0

3 years ago

Solved and graph each inequality X+7>11

Nina [5.8K]

Answer:

$x>4$