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3 years ago

Andreas can type 32 words in 72 seconds. At this rate, how long would it take him to type 56 words? (

Mathematics

1 answer:

Whitepunk [10]3 years ago

3 0

Answer:

It will take Andreas 156 seconds or 2 minutes and 36 seconds to write 56 words.

Step-by-step explanation:

72 ÷ 32 = 2.25

2.25 = unit rate

2.25 × 56 = 156

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You can copy the data into Excel by highlighting the data, right-clicking and selecting Copy, then opening Excel, clicking on a

Iteru [2.4K]

Answer:

Low income group :

Mean = 22.100

Median = 22.000

Standard deviation = 4.717

High Income group :

Mean = 19.771

Median = 20.000

Standard deviation = 3.255

Step-by-step explanation:

Low income : 19,20,13,28,21,27,16,21,19, 19,34,24, 24,14,24,25,23,22,20,21,14,23,17,26,24,24,20,24,27,16,22,17,29,20,25,22,20,34,24,22

High Income : 23 19 19 18 20 18 17 25 13 24 25 17 21 19 17 22 22 15 19 23 19 23 22 20 20 20 13 21 16 13 21 24 23 21 20

Using Excel :

Mean of low income, Σx / n = 884/40 = 22.100

Median of low income group : 1/2(n+1)th term = Median of low income = 22.000

Standard deviation of low income group :

√(Σ(x - mean)²/n) = 4.717

High Income group :

Mean of high income, Σx / n = 692/35 = 19.771

Median of high income group : 1/2(n+1)th term = Median of high income = 20.000

Standard deviation of low income group :

√(Σ(x - mean)²/n) = 3.255

5 0

3 years ago

a plant is already 56 centimeters tall, and it will grow one centimeter every month. that plants height, H (in centimeters) afte

nadya68 [22]

Answer:

Step-by-step explanation:

We need to calculate the height after 23 months.

so m= 23

Plug in m=23

we have H(m) = 56 + 23 = 79

Answer is 79cm

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3 years ago

Which table represents the statement “A freight train is traveling at an average rate of 45 miles per hour”?

Evgesh-ka [11]

Answer:

the first one

Step-by-step explanation:

the answer is the first one

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3 years ago

HELPPPP!!!! ASAP!!!!! NEED BEFORE TOMORROW!!!! I'll give 20 points!!!

olya-2409 [2.1K]

#1:(A)

#2:(E)

#3:(C)

Hope it helps!

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3 years ago

Graph the line that passes through the two lines (1,5/2), (-1/2,-1/4)

antiseptic1488 [7]

Answer:

Image below

Step-by-step explanation:

Graph of a Line Given Two Points

We are given the points (1,5/2), (-1/2,-1/4).

A straight line is entirely defined by two points. We have to plot them and join them with a straight line ending in arrows.

The point (1,5/2) is converted to decimal as (1,2.5)

The point (-1/2,-1/4) is also converted to decimal: (-0.5,-0.25)

This helps to define the divisions of each axis and properly draw the line.

Please refer to the image below.

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3 years ago