Question

One of the greatest assets of a secretary is often his/her ability on the keyboard of a computer. Mrs. Garcia has been recognized as the Most Outstanding Typist at a prestigious firm because of her outstanding typing speed. The table below displays data collected from her most recent evaluation. ------------------------------------------------ Minutes / Words ------------------------ 1 | 70 2 | 140 3 | 210 4 | 280 Write a function to represent the total number of words, y, that Mrs.Garcia can type in x minutes. If Mrs. Garcia maintains a constant speed consistent with the results above how many words will she type in a 49 minutes?

Answer 1

Answer:

Function represent the given situation is y = 70x and she can type 3430 word in 49 minutes.  

Step-by-step explanation:

Given:

Number of words Mrs. Garcia typed in a minute = 70

Number of words Mrs. Garcia typed in 2 minute = 140

Number of words Mrs. Garcia typed in 3 minute = 210

Number of words Mrs. Garcia typed in 4 minute = 280

Speed of Mrs. Gracia = $\frac{140-70}{2-1}=70\:words/minutes$

So, Function which represent total number of words ,  in x minutes is given as following,

y = 70 × x

y = 70x

Now, put x = 49 in above function to find number of word she typed in 49 minutes.

y = 70 × 49

y = 3430

Therefore, Function represent the given situation is y = 70x and she can type 3430 word in 49 minutes.  

Answer 2

Y=70x
If she types at a consistent speed for 49 minutes she will have typed 3,430 words.