mbonilla073

31.07.2019 • 

Mathematics

During the first week at a new job, krystal worked 7.5, 8, 7, 8.5, and 8 hours over the course of her five days.
in her second week, krystal worked 4 more hours than she had in her first week.
what was krystal's increase in mean number of hours worked per day from her first week to her second week?
0.8 h
1.25 h
8.6 h

Ответ:

Key1431

04.02.2021

Mathematics

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l=11.25 (total of both lengths, you divide that by 2 for one side.)

Step-by-step explanation:

l*w=20 ft

l=w+2 1/2 ft

w+2 1/2 *w= 20

-2 1/2

2w=17 1/2

divide by 2

w=8.75 l= 11.25

8.75+2.5 = 11.25

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