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V125BC [204]
2 years ago
8

HELPPP simplify the expression !!!

Mathematics
2 answers:
solong [7]2 years ago
7 0

Answer:

Exact form: 3√5/5

Decimal form: 1.34164078...

Step-by-step explanation:

soldier1979 [14.2K]2 years ago
4 0

Answer:

6.708020

Step-by-step explanation:

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Which proportion could be used to find 77% of 126?.
ss7ja [257]
The answer is D hope it help
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15.09 ÷ 0.01 = ?<br> 267.4 ÷ 1/10 = ?
Masja [62]

Answer:

Dividing by a fraction is multiplying by the reciprocal

15.09/1/100=15.09*100=1509

267.4/1/10=267.4*10=2674

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Shayla tutors middle school students and high school students. She charges a different rate for each. Last week, she tutored mid
Veronika [31]

Answer:

<em>Shayla charges $20 per hour for middle school students and $25 per hour for high school students.</em>

Step-by-step explanation:

<u>System of Equations</u>

Let's call:

x = Shayla's hourly charge for middle school students

y = Shayla's hourly charge for high school students

Last week, Shayla tutored middle school students for 5 hours and high school students for 12 hours. The total earning was 5x+12y. She earned $400 last week, thus:

5x + 12y = 400        [1]

This week, she tutored middle school students for 6 hours and high school students for 10 hours. The total earnings were 6x+10y and it represented $370, thus:

6x + 10y = 370

Dividing by 2:

3x + 5y = 185        [2]

We have formed the system of equations:

5x + 12y = 400        [1]

3x + 5y = 185        [2]

Multiply [1] by -3 and [2] by 5:

-15x - 36y = -1200

15x + 25y = 925

Adding both equations:

-11y = -275

Dividing by -11:

y = -275/(-11) = 25

y = 25

Substituting in [1]:

5x + 12*25 = 400

5x + 300 = 400

5x = 400 - 300 = 100

x = 100/5 = 20

x = 20

Shayla charges $20 per hour for middle school students and $25 per hour for high school students.

7 0
2 years ago
Jonathan had a balance of $120 dollars in his bank account at the beginning of the month. During the first week of the month he
tiny-mole [99]

Answer:

$47

Step-by-step explanation:

$120 starting out and he spent $45 + $28 of that $120

so 120-45+28=47

7 0
3 years ago
5(4x-4)+2(13-5x)-3(3x+4)=-3 solve the equation. heLP
adell [148]

The answer is x=3

Im sure of it.

6 0
3 years ago
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