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3 years ago

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For every hour that Noah studies, his test score goes up 3 points. Explain which is the independent variable and which is the de

pendent variable. Write an equation modeling the relationship between hours studied h and the increase in Noah's test score s.

2 answers:

Mnenie [13.5K]3 years ago

5 0

The independent variable is the test hours that he studies; because they are not affected by any of the other variables. The dependent variable is the test score; because the amount of the test score depends on the variable of the studied hours.

t=test score
h=hours studied

t+h3

Not sure about the equation though. Might wanna check that. Hope this helps!

Arturiano [62]3 years ago

4 0

The independent variable is hours and the score or points is the dependent variable .equation is s=3h

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the density of pure gold 1,204 pounds per cubic foot? how many cubic feet is 481.6lbs of pure gold?

Nadusha1986 [10]

Answer:

Volume of Gold = 0.4 cubic feet.

Step-by-step explanation:

First we have to make sure the units are same as the units the answer is required in.

Answer should be given in cubic feet.

Density is given in pounds per cubic foot. And Mass is given in pounds. So units are in order. Therefore, we can go ahead with the calculation.

The Density of Gold = [Mass of Gold/Volume of Gold]

By substituting values,

$1204$ ponds per cubic foot = [ $481.6$ pounds / Volume of gold]

Making Volume of God the subject of the equation,

Volume of Gold = [ $481.6$ pounds / tex]1204[/tex] ponds per cubic foot ]

Volume of Gold = 0.4 cubic feet.

5 0

2 years ago

The common difference in an arithmetic sequence is –2 and the first term is 47. What is the 29th term?

BlackZzzverrR [31]

An arithmetic sequence is an ordered list of numbers where the next number is found by adding on to the last number (ex: 2,5,8,11... is a sequence where 3 is added on to find the next number).

The equation for an arithmetic sequence is
$A_{n}=A_{1}+(n-1)d$

$A_{n}$ is the "n-th" number in the sequence (ex: is the first term in the sequence)
d is the number you add (common difference) to find the next number
The first number in the sequence is 47 so $A_{1}=47$
<span>d=-2 because the question gives you that
</span>
$A_{n}=A_{1}+(n-1)d$
<span> $A_{29}=47+(29-1)(-2)$
</span><span> $A_{29}=47+(28)(-2)$
</span><span> $A_{29}=47+-56$
</span><span> $A_{29}=-9$
</span>
The answer is A. -9.

<u> </u>

<span>The answer is C. 158</span>

For the second one, it gives you $A_{1}=4$ and <span> $A_{}=18$
You can use this to find d

</span><span> $A_{n}=A_{1}+(n-1)d$
</span><span> $A_{3}=4+(3-1)d$
</span><span> $18=4+(3-1)d$
</span><span> $18=4+2d$
</span><span> $14=2d$
</span><span> $7=d$
</span>
Now you can just solve using the equation normally.
<span> $A_{n}=A_{1}+(n-1)d$
</span><span> $A_{23}=4+(23-1)(7)$
</span><span> $A_{23}=4+(22)(7)$
</span><span> $A_{23}=4+154$
</span><span> $A_{23}=158$
</span>
The answer is C. 158

8 0

3 years ago

Read 2 more answers

Lee is making cookies and the recipe calls for 3/4 c. of chocolate chips. If she wants to make 2/3 of the recipe, what fraction

andreev551 [17]

3/4×2/3=1/2 that is the answer

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2 years ago

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Tracy took a quiz containing 12 items. If she answered 5/6 of the items correctly how many items did Tracy answer correctly?

Orlov [11]

Answer:

10

Step-by-step explanation:

5/6=10/12

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3 years ago

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I don't get this please can someone solve/ help me with this appreciate it thank you

Assoli18 [71]

It's scientific notation, so 1.4x10^7 would be 14000000 <span />

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2 years ago