subject
Mathematics, 29.11.2021 01:00 natalie2sheffield

8. A runner ran two laps around a 400 m track. She completed the first lap in 50 seconds and then decreased her speed by 5% for
the second lap. Find:
a) her speed on the first lap
b) her speed on the second lap
c) her total time for the two laps
d) her average speed for the two laps.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 15:20
What is the value of r of the geometric series?
Answers: 1
question
Mathematics, 21.06.2019 18:30
What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12
Answers: 2
question
Mathematics, 21.06.2019 23:30
Maddie's rectangular kitchen has an area of 10 square yards and a length of 3 3/4 yards.how many yards wide is maddie's kitchen?
Answers: 1
question
Mathematics, 22.06.2019 00:20
Nthe opening scene of the movie raiders of the lost ark, indiana jones replaces a golden statue with a bag of sand. the platform on which the statue is placed is designed to detect the mass of the statue. if the bag of sand has a different mass than the statue, then a mechanism triggers and destruction ensues. the density of gold is about 20\text{ g/cm}^320 g/cm 3 20, space, g, slash, c, m, start superscript, 3, end superscript. the density of sand can be estimated at 2.5\text{ g/cm}^32.5 g/cm 3 2, point, 5, space, g, slash, c, m, start superscript, 3, end superscript. the gold statue can be modeled as a cylinder with height 25\text{ cm}25 cm25, space, c, m and radius 8\text{ cm}8 cm8, space, c, m. in terms of \piπpi, what is the mass of sand indiana jones needs to avoid triggering the mechanism?
Answers: 2
You know the right answer?
8. A runner ran two laps around a 400 m track. She completed the first lap in 50 seconds and then...
Questions
question
History, 09.10.2020 03:01