MATHEMATICS MIDDLE SCHOOL

20% of 50 is what number

PLEASE HELP

Answers

Answer 1
Answer:  To find a percentage, multiply the number by the percentage as a decimal. 20% as a decimal is .2.
50 times .2 is 10
50×.2=x
50×.2 = 10
10=10

20% of 50 is 10!
Answer 2
Answer: To get 20% of a question you would have to be able to divide by 5 so 50/5=10. So the answer is 10. Hope this helped.

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Estimate the number of pints in 445 ounces

Answers

Answer:

To find how many pints are in ounces multiply the ounce value by the conversion factor.

1 ounces =  (1)/(16) = 0.0625 pint

Given: 445 ounces

Convert 445 ounces into pints multiply 445 to 0.0625.

we have

445 * 0.0625 =27.8125 pints

Therefore, the estimate number of pints in 445 ounces is, 28 pints
The exact answer is 27.813, but the estimated answer is 28.0 pints
I Hope This Helps! :)

Help with 14? plz thx for your help

Answers

A) is 0.51 B) is 0.85 C) is 3/4 hope this helps :D

(I NEED THIS ANSWERED QUICKLY! I WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER!)The older square-shaped floppy diskettes measured 5 inches on each side. What was the diagonal length of a diskette?

A. √ 50 in.
B. √ 55 in.
C. √ 51 in.
D. √ 58 in.

Answers

Step-by-step explanation:

Since, diskette is of square shape.

Therefore, length of diagonal of a square shaped diskette is given as:

length \: of \: diagonal \: of \: diskette \n = √(2) * side \: of \: diskette \n = √(2) * 5 \n = 5 √(2) \n = \sqrt{ {5}^(2) * 2 } \n = √(25 * 2) \n = √(50) \: inches

Hence, option A is the correct answer.

A 120 watt light bulb uses about 0.1 kilowatt of electricity per hour.if electricity costs $0.20 per kilowatt hour how much does it cost to have a bulb on for an hour?

Answers

A 120 watt light bulb uses about 0.1 kilowatt of electricity per hour.if electricity costs $0.20 per kilowatt hour. Let's solve how much does it cost to have a bulb on for an hour. => 120 watt = 0.1 kilowatt per hour which costs 0.20 per kilowatt per => 0.1 kilowatt per hour * 0.20 = 0.02 dollars in an hour.

Answer:

$0.02 is the cost to have the bulb on for an hour

Step-by-step explanation:

A 120 watt light bulb uses about 0.1 kilowatt of electricity per hour

We can assume 1 kilowatt per hour = 1 unit

So total units of electricity consumed in 1 hour = 0.1 × 1

= 0.1 kilowatt hour or 0.1 unit

Since cost of one unit or 1 kilowatt hour is = $0.20 per unit or kilowatt hour.

Therefore, total cost to have this bulb on for an hour = Number of units consumed by the light bulb × per unit cost

= 0.1×0.20

= $0.02

$0.02 is the cost to have the bulb on for an hour.

If the sales tax on a $30 item is $1.80, what is the sales tax rate?

Answers

30t = 1.80
t = 0.06

0.06*100 = 6

6%

Type the next step in the pattern.4, 12, 6, 18, 9,               Does anyone know?

Answers

4, 12, 6, 18, 9, ...\n\n4\cdot3=12\ \ \ \ \ \ \ \ and\ \ \ \ \ \ \ 12:2=6\n6\cdot3=18\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 18:2=9\n9\cdot3=27\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 27:2=13.5\ \ \ ...\n\nAns.\ The\ next\ step\ is\ 27.
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