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Harman [31]
3 years ago
10

TEN POINTS:

Mathematics
1 answer:
neonofarm [45]3 years ago
3 0

Answer:

81/16 = 5 1/16

Step-by-step explanation:

-4(square root of x) -3 = -12

Add 3 to both sides

-4(square root of x) = -12 +3 = -9

Divide both sides by -4

(square root of x) = -9/-4

-/- equals +

(square root of x) = 9/4

Square both sides to cancel the square root

x = (9/4)^2 = 81/16 = 5 1/16

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Hatshy [7]
Each two digit number has two numbers (duh!). Let's allow the tens digit to be x and the units digit to be y. Tens digit is 3 less than the units digit: x = y-3 Original number is 6 more than 4 times the sum of the digits: 10x+y-6 = 4x + 4y This gives us simultaneous equations!First let's clear the mess: 1. x= y-32. 6x-3y=6 Substitute 1 into 2: 6(y-3) -3y =66y - 18 - 3y = 6
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3 years ago
Earl gets a commission of 20% on all sales. He sold $1,580.00 worth of goods. What was the amount of his paycheck?
Anni [7]
The answwer

20%  of <span>$1,580.00 is   X= 1,580 x20/ 100 = $316
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7 0
4 years ago
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The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000
valina [46]

Answer: 61,750 miles

Step-by-step explanation:

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z=\dfrac{x-\mu}{\sigma}\\\\\Rightarrow\ 1.75=\dfrac{x-60000}{1000}\\\\\Rightarrow\ x-60000=1750\\\\\Rightarrow\ x=61750

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3 0
3 years ago
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Amiraneli [1.4K]
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3 years ago
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denis-greek [22]

Answer:

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Step-by-step explanation:

5.804

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tens, hundreds, thousands

4 0
3 years ago
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