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maw [93]
4 years ago
9

Four student work to find an estimate for √27. Who os the closet to finding the true estimate

Mathematics
1 answer:
11111nata11111 [884]4 years ago
6 0

Answer:

simplified version is 3\sqrt{3}

Step-by-step explanation:

1.) find possible factors to 27 that have one perfect root (in this case, its 9)

\sqrt{(9*3)}

2.) square each number in the radical

\sqrt{9} *\sqrt{3}

3.) simplify

3\sqrt{3}

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If tatianna works 3hrs a day on school days and make $123.75 a week what is her hourly rate?​
madreJ [45]

<u><em>Answer:</em></u>

Her hourly rate is $8.25

<u><em>Explanation:</em></u>

Tatianna works 3 hours a day on school days and makes a total of $123.75 in a week

<u>We know that:</u>

There are 5 school days in a week

<u>We are given that:</u>

She works for 3 hours a day each of those days

<u>Therefore:</u>

Total number of hours worked = hours worked daily * number of days

Total number of hours worked = 3 * 5 = 15 hours in a week

<u>The equation used to calculate Tatianna's earnings is:</u>

Amount she makes in a week = Total number of hours worked * hourly rate

<u>Now, we substitute with the givens to get the hourly rate as follows:</u>

Amount she makes in a week = Total number of hours worked * hourly rate

123.75 = 15 * hourly rate

Hourly rate = $8.25

6 0
3 years ago
PLEASE HELP ME I DONT UNDERSTAND AND NOW IM WRITING STUFF TO GET AT LEAST 20 WORDS SO I CAN ASK THE QUESTION
rewona [7]

Answer:

The answer is 75 degrees

Step-by-step explanation:

Supplementary angles add to 180 and 105 + Y= 180.

So, you subtract 105 from 180 and Y is 75

3 0
3 years ago
Use mental math to calculate 49% of 162.
podryga [215]
First you divide the number 162 by 100 (100 is 100%) which = 1.62 then you multiply this by the % given which is 49 so 162/100=1.62 then 1.62*49= 79.38
6 0
3 years ago
What is 74.326 rounded to the nearest tenth?
Readme [11.4K]

Here is your answer:

Find the tenth place value which is two:

74.326

Then look to the next number and see if that number is greater or equal too 5:

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Now if 6 is greater than 5 you have to round up one so 2 would be 3:

74.330

Therefore the answer is "74.330."

Hope this helps!

8 0
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Before a sale, an item’s price was $28.00. After the sale discount the price became $21.00. What was the percent of the sale dis
NARA [144]
The discount was 25% off use 21/28 which is 75 percent of what it was before. 25 percent off.
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4 years ago
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