ch additional ie.or the number of miles If Juan\'s taxi fare was S6.05, how many

Question

ch additional ie.or the number of miles If Juan's taxi fare was S6.05, how many iios du es r aves s Se ers . If Juan's taxi fare was $7.65 how many miles did he travel in the tax se the situation below to complete Exercises 9-11. The equation used to estimate typing speed is S(10), where S is the accurate typing speed, w is the number of words typed in 5 minutes and e is the number of errors. 9. Ignacio can type 55 words per minute (wpm). In 5 minutes, she types 285 words. How many errors would you expect her to make?" 10. If Alexis types 300 words in 5 minutes with 5 errors, what is his typing speed 11. Johanna receives a report that says her typing speed is 65 words per minute. She knows that she made 4 errors in the 5-minute test. How many words did she type in 5 minutes? the respona Original conteni Copyrighi @ by Houghton Mitin Harcout Addons and changes to ine gil a 145

Explanation / Answer

The relationship between the accurate typing speed (S) and the no. of words typed in 5 minutes , is given by S = 1/5(W-10e), where e is the no. of errors.

9. For Ignacio, S = 55, W = 285, so that 55 = 1/5(285-e) or, 285-e = 55*5 = 275 so that e = 285-275 = 10. Thus, Ignacio makes 10 errors.

10.For Alexis, W = 300,and e = 5, so that S = 1/5(300-5) = 1/5(295) = 59. Thus, Alexis’s typing speed is 59words/minute.

11. For Johanna, S = 65, and e = 4, so that 65 = 1/5(W-4) or, W-4 = 5*65 = 325 so that W = 325+4 = 329. Thus, Johanna typed 329 words in 5 minutes.

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