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Citrus2011 [14]
2 years ago
8

HELpppppppppPPPPPPPPPPPPPPPpppppPPPPPPPP

Mathematics
1 answer:
Savatey [412]2 years ago
6 0

Answer:

(a) mintutes, seconds

(b) Randomly pick 55 students to run a lap around the track and measure their times

Step-by-step explanation:

(a) When measuring distance like running you measure it in minutes and seconds

(b) When finding the average of a population you have to pick randomly and to get the best results you time them youself

Randomly pick 55 students to run a lap around the track and measure their times.

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Lin read the first 54 pages from a 270-page book in the last 3 days. Diego read the first 100 pages from a 320-page book in the
ale4655 [162]

Answer:

The answer to your question is:

1st Diego

2nd Diego and Elena ( both 15 days)

Step-by-step explanation:

Data

Lin          54 pages               270-page book                   3 days

Diego   100 pages               320 page                             4 days

Elena   160 pages                480 page                             5 days

Process

Lin

                          54 pages      -------------------   3 days

                        270 page        -----------------      x

                          x = (270 x 3) / 54

                          x = 15 days

Diego

                        100 pages        -----------------   4 days

                        320                  --------------------   x

                        x = (320 x 4) / 100

                        x = 12.8 days

Elena    

                        160 pages -------------------   5 days

                       480 pages --------------------   x

                       x = (480 x 5) / 160

                       x = 15 days

5 0
3 years ago
the temperature in Nico's town was -2.9 f at noon . the temperature increased at a steady rate of 1.3 f per hour until 6:00p.m.
kotykmax [81]
Temperature at noon: Tn=-2.9 f
Rate: r=+1.3 f/h
Total decreased: d=-3.7 f 
Temperature at midnight: Tm=?

Tm=Tn+r(6 p.m.-12 m)+d
Tm=-2.9 f+(1.3 f/h)(18 h-12 h)+(-3.7 f)
Tm=-2.9 f+(1.3 f/h)(6 h)-3.7 f
Tm=-2.9 f+7.8 f-3.7 f
Tm=1.2 f

Answer: T<span>he temperature at midnight was 1.2 f</span>
6 0
3 years ago
Yan ate 1/4 of a pizza. What friction of the pizza is left?
wariber [46]

Answer:

3/4

Step-by-step explanation:

If he/she ate 1/4 then there would still be 3/4

3 0
3 years ago
919,827 to the nearest 1000, 100, and 100
OverLord2011 [107]

nearest 1000: 920,000

nearest 100: 919,800

nearest 10 (you said 100 but I think you mean 10): 919,830

8 0
3 years ago
Leah wrote 2 different fractions with the same denominator. both fractions were less than 1. can their sum equal 1? explain
grandymaker [24]
Yes. Their sum can be equal to 1 because if they have the same denominator they will add easier like 3/4 and 1/4 or 1/2 and 1/2. All of them have the same denominator and still equal 1
8 0
3 years ago
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