Ask question

Ask question

All categories

3 years ago

13

What is 20% of 55? (show work)

1 answer:

SCORPION-xisa [38]3 years ago

4 0

I know that 20% is out of 100.If I changed this problem to be a fraction problem,I would change that percent to 20/100.55 would be the denominater of the other fraction.Right now we're trying to find the numerator for the denominator of 55 to make this a complete fraction.Secondly,I would try to find a common denominator to get my answer.I'm going to make the common denominator......5500.As my teacher always said what you do to the bottom you do to the top and it goes the other way around too.So, i will times 20*55 to get my numerator.This equals 1100.Now I would divide this fraction by 100 to get my finished answer.The answer is 11 is 20% of 50.

You might be interested in

Find the gradient of the line segment between the points (-1,3) and (1,-2).

Serga [27]

Can someone please on this , I need help on this too !!

4 0

3 years ago

Read 2 more answers

The length of a rectangle is the sum of the width and 4. The area of the rectangle is 32 units. What is the width, in units, of

tigry1 [53]

Answer:

b=4

Step-by-step explanation:

Lets a be lenght and b width. From text we have:

a=b+4

a*b=32

Put the first equation in the 2n, we get:

(b+4)b=32

b^2+4b-32=0

b^2+8b-4b-32=0

b(b+8)-4(b+8)=0

(b+8)(b-4)=0

So it must be b=-8 or b=4. We know that width cannot be negative, so it is 4.

5 0

4 years ago

Alex and Ben were given a total of £360 they shared the money in the ratio 5:7 Ben received more money then Alex.how much more?

Aleks [24]

First
360 divided by 12=30
alex got=30 multiply 5=150
ben got=30 x 7 =210
so ben got 60 more than alex

6 0

3 years ago

Read 2 more answers

Find the length of side a in simplest radical form with a rational denominator.

Goshia [24]

Answer:

x = 5.5

Step-by-step explanation:

Using a trig ratio, you can use sin, which is opposite over hypotenuse. $sin(30)\textdegree=\frac{x}{11}$

Now, multiply both sides by 11

$11\cdot sin(30)\textdegree=x$

this simplifies to x = $\frac{11}{2}$ or 5.5.

Since sin30 is $\frac{\pi}{6}$ radians, it can be written as $\frac{11\pi}{6}$ .

8 0

2 years ago

I NEED HELPP PLS!!!!!!!!!!!!!!!!!!!

iris [78.8K]

Answer:

270

Step-by-step explanation:

The formula for finding the area of a triangle is <em>base · height ÷ 2, </em>or $\frac{bh}{2}$

After plugging in the numbers given to the formula, we find that the area of the triangle is 27.

Then to account for the length, we multiply the area of the triangle by 10.

This gets us to 270.

3 0

3 years ago