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Rama09 [41]
4 years ago
9

Several students in ashtons class are randomly selected and asked how many text messages I sent yesterday their answers were 1,

0, 10, 7, 13, 2, 9, 15, 0, 3 how many students were asked how do you know?
Mathematics
1 answer:
Stolb23 [73]4 years ago
8 0
10 students were asked because there was 10 answers given.
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What is the inverse of the function f(x) = 2x + 1?
BaLLatris [955]

Answer:

f^{-1} = \frac{x-1}{2}

Step-by-step explanation:

f(x) = 2x+1

<em>Replace it with y</em>

y = 2x+1

<em>Exchange the values of  x and y</em>

x = 2y+1

<em>Solve for y</em>

x = 2y+1

<em>Subtracting 1 from both sides</em>

2y = x-1

<em>Dividing both sides by 2</em>

y = \frac{x-1}{2}

<em>Replace it by </em>f^{-1}

So,

f^{-1} = \frac{x-1}{2}

3 0
4 years ago
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Solve by the method of balancing and equation and write the step use to separate the variable.....​
lesya [120]

Answer:

the required answers are :

c) x = 2

d) x = 27 / 7

e) x = 9

f ) x = 6

Step-by-step explanation:

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5 0
3 years ago
What is 2/3 plus 11/12 equal in a fraction
dlinn [17]

19/12

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6 0
3 years ago
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What would be the answer to x + 22 - 13x greater than or equal to 118
Fynjy0 [20]

Answer:.

x greater than or equal to -8

Step-by-step explanation:

x+22-13x≥118

Collect like terms

x-13x≥118-22

-12x≥96

Divide both sides by -12

-12x/12≥96/-12

x≥96/-12

x≥-8

The answer is x greater than or equal to -8

4 0
3 years ago
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Sun, a kayaker, paddles 8 miles upstream (against the current) in 2 hours. Returning to her original location, she paddles downs
Virty [35]

Answer: a=8 and b=1


Step-by-step explanation:

If x represents the paddling speed, and y represents the speed of the current.

Then Relative speed in upstream =x-y

Relative time in downstream=x-y

When she paddles upstream then distance covered by her=speed\times\ time

⇒8=(x-y)2 or 2(x-y)=8

Thus we get, a=1

When she paddles downstream then distance covered by her=speed\times\ time

⇒8=(x+y)1 or 1(x+y)=8

Thus we get b=1

4 0
3 years ago
Read 2 more answers
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