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ss7ja [257]
3 years ago
13

describe what would be true about the rate of change in a situation that could be represented by a graphed line and an equation

in the form y=mx + b
Mathematics
1 answer:
Andru [333]3 years ago
5 0
If y=mx+b,

\frac { dy }{ dx } =m

You can't differentiate a constant, so dy/dx=m.
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The average weight of the class of 35 students was 45 KG. with the admission of a new student the average weight came down to 44
melamori03 [73]

The weight of the new student is 27 kg.

Average weight

= total weight ÷total number of students

<h3>1) Define variables</h3>

Let the total weight of the 35 students be y kg and the weight of the new student be x kg.

<h3>2) Find the total weight of the 35 students</h3>

<u>45 =  \frac{y}{35}</u>

y= 35(45)

y= 1575 kg

<h3>3) Write an expression for average weight of students after the addition of the new student</h3>

New total number of students

= 35 +1

= 36

Total weight

= total weight of 35 students +weight of new students

= y +x

44.5  =  \frac{y + x}{36}

<h3>4) Substitute the value of y</h3>

44.5 =  \frac{1575 + x}{36}

<h3>5) Solve for x</h3>

36(44.5)= 1575 +x

1602= x +1575

<em>Subtract 1575 from both sides:</em>

x= 1602 -1575

x= 27

Thus, the weight of the new student is 27 kg.

7 0
2 years ago
Which is the simplified form of the expression (6^-2•6^5)^-3
Arisa [49]

Answer:

1

Step-by-step explanation:

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6 0
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Answer:

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Step-by-step explanation:

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VARVARA [1.3K]

x = 0.27

:)

good luck

4 0
3 years ago
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