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stiks02 [169]
3 years ago
5

Alfred is practicing typing. The first time he tested himself, he could type 27 words per minute. After practicing for a week, h

e could type 29 words per minute. After two weeks he could type 31 words per minute. Based on this pattern, predict how fast Alfred will be able to type after four weeks of practice.
Mathematics
1 answer:
Minchanka [31]3 years ago
7 0
In four weeks, he would be able to type 35 words a minute. See how it goes up two words per week. He started with 27 words, then after one week, it was 29, and after two weeks, it was 31, so after three weeks, 33, and in four weeks, 35. See the pattern? It counts by twos.
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What is the correct meaning of the word gripe?<br> I’m dumb
ruslelena [56]

Answer: Complain

Step-by-step explanation:

Gripe- express a complaint or grumble about something, especially something trivial.

5 0
3 years ago
Read 2 more answers
At the district competition for 5th grade jump-roper of the year, the following number of jumps without stopping were recorded p
deff fn [24]
First, we arrange the data from least to greatest:
  90, 100, 100, 200, 203, 224, 233, 237, 245, 257, 264, 265, 265, 266, 277, 279, 285, 288, 288, 290, 290, 291, 291, 300

There are 24 data all in all. The mean is calculated by dividing by 24 the sum of all the data.
                        mean = (5828)/24242.83

The median of the number of jumps is the mean of the 12th and 13th term.
                          265 
5 0
3 years ago
Which function is a linear function?
Anettt [7]

For this case we have that by definition, a linear function is of the form

y = mx + b

We have the following options:

A) 1-3x ^ 2 = -y

Rewriting:

y = 3x ^ 2-1

It's a quadratic function!

B) y + 7 = 5x

Rewriting:

y = 5x-7

It's a linear function!

C)x ^ 3 + 4 = y

Rewriting:

y = x ^ 3 + 4

It's a cubic function.

D) 9 (x ^ 2-y) = 3

Rewriting:

9x ^ 2-9y = 3\\9y = 9x ^ 2-3\\y = x ^ 2- \frac {3} {9}

It's a quadratic function!

E)y-x ^ 3 = 8

Rewriting:

y = x ^ 3 + 8

It's a cubic function!

Answer:

The linear function is option B

4 0
3 years ago
BRAINLIEST ASAP! PLEASE HELP ME :)
Margaret [11]

Answer:

\large \boxed{\text{3.0 mi/h}}

Step-by-step explanation:

            Let x = the current of the river

Then 21 + x  = the speed going downstream (with the current)

  a nd 21 - x  = the speed going upstream (against the current)

Distance = speed × time

           d = st

            t = d/s

Time going downstream = time going upstream

\begin{array}{rcll}\dfrac{2.4}{21+ x}& = & \dfrac{1.8}{21 - x} &\\\\2.4& = &(21 + x) \dfrac{1.8}{21 - x} &\text{Multiplied each side by (21 + x)}\\\\2.4(21 - x)& = & 1.8(21 + x) &\text{Multiplied each side by (21 - x)}\\50.4 - 2.4x&=& 37.8 + 1.8x&\text{Removed parentheses}\\50.4 & = & 37.8 + 4.2x & \text{Added 2.4x to each side}\\\end{array}\\

\begin{array}{rcll}12.6 & = & 4.2x & \text{Subtracted 37.8 from each side}\\x & = &\dfrac{12.6}{4.2}&\text{Divided each side by 4.2}\\\\ & = &\mathbf{3.0}& \text{Simplified}\\\\\end{array}\\\text{The current is $\large \boxed{\textbf{3.0 mi/h}}$}

Check:

\begin{array}{rcl}\dfrac{2.4}{21+ 3}& = & \dfrac{1.8}{21 - 3}\\\\\dfrac{2.4}{24}& = & \dfrac{1.8}{18}\\\\0.10 & = & 0.10\\\end{array}

OK

4 0
3 years ago
What is the slope between the points (3,5) and (-2,-4)
serg [7]

9/5 is the answer, hope this helps


4 0
3 years ago
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