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3 years ago

suppose you can type 60 words per minute. what is the total number of words typed after 5, 10, 15, and 20 minutes?

Mathematics

2 answers:

alexira [117]3 years ago

8 0

Multiply 60 x 5, 10, etc.

Montano1993 [528]3 years ago

6 0

60wordsx5min= 300
60wordsx10min= 600
60wordsx15min= 900
60wordsx20min= 1,200

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A sports announcer states that there are 65,000 fans in the stadium. Estimate the maximum noise level. Is this estimate reasonab

SIZIF [17.4K]

Question:

The scatter plot shows the maximum noise level when different numbers of people are in a stadium. The linear model is given by the equation y=1.5x + 22.7 where y represents maximum noise level and x represents the number of people, in thousands, in the stadium.

A sports announcer states that there are 65,000 fans in the stadium. Estimate the maximum noise level. Is this estimate reasonable? Explain your reasoning.

Answer:

$y = 97522.7$

Step-by-step explanation:

Given

$y = 1.5x + 22.7$

$x = 65000$

Required

Find y

Substitute 65000 for x in the given equation

$y = 1.5 * 65000 + 22.7$

$y = 97500 + 22.7$

$y = 97522.7$

<em>It is reasonable because as the population increases, the noise level also increases</em>

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3 years ago

What's the equation of a line that passes through points (–1, –5) and (1, 3)?

erastova [34]

Answer:

y=4x-1

Step-by-step explanation:

4 0

3 years ago

What value will make the equation true?<br><br> -2.1 - ? = - 1 1/2

Dima020 [189]

Answer:

I believe the answer is -6/10 or -0.6

Step-by-step explanation:

-2.1- (-0.6) = -1.5

-1.5 = -1 1/2

7 0

3 years ago

A sum of money is placed at simple interest for 3 years at 10% annum and then the amount is invested for 3 years at the same rat

fgiga [73]

Answer:

Initial principal -$300,000

Investment amount after yr 3-$390,000

Final investment amount, after 6 yrs-$519,090

Step-by-step explanation:

Let X be the amount initially invested.

#The amount after 3 yrs of simple interest is calculated as:

$I=PRT\\\\A=P+I\\\\A=X+X\times 0.1\times 3\\\\A=1.3X$

#The amount after 5 yrs is calculated by compounding the amount after 3 yrs for 2 yrs at 10%:

$A=P(1+i)^2\\\\471900=1.3X(1.1)^2\\\\471900=1.573X\\\\X=300000$

Hence, the amount initially invested as $300,000

#Amount of invested after 6 yrs is therefore:

$A=P(1+i)^n\\\\=471900\times1.1\\\\=519090$

Hence, the total amount of the investment after 6 yrs is $519,090

#Substitute X in simple interest equation to find amount after 3 yrs of simple interest:

$I=PRT\\\\A=P+I\\\\A=X+X\times 0.1\times 3\\\\A=1.3X\\\\=1.3\times 300000\\\\=390000$

Hence, the total amount of the investment after first 3 yrs is $390,000

3 0

4 years ago

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romanna [79]

Answer:

It is not a function.

Step-by-step explanation:

Using the verticals line test you can tell the relation is not a function because two number are the same in the x-value. This can be easily seen with the two points on the same vertical line.

7 0

3 years ago