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m_a_m_a [10]
3 years ago
6

An athlete is tracking his weight

Mathematics
2 answers:
ycow [4]3 years ago
7 0

Answer:

His rate of change is 7 pounds per week.

Step-by-step explanation:

Rate of change = change in weight ÷ change in time

change in weight = 188 - 167 = 21 pounds

change in time = 6 - 3 = 3 weeks

Rate of change = 21 ÷ 3 = 7 pounds/week

blsea [12.9K]3 years ago
7 0

Answer:

He loses 7 pounds per week

Step-by-step explanation:

After 3 weeks he weighs 188 pounds.

After 6 weeks he weighs 167 pounds.

Weight loss = (188 - 167) pounds = 21 pounds

Time interval = 6 weeks - 3 weeks = 3 weeks

Rate of change = Weight loss ÷ time interval = \frac{21}{3} pounds per week = 7 pounds loss per week.

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kompoz [17]
3.22 divided by 14 is .23.   .23 plus .15 is .38 cents per candy at regular price.
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3 years ago
In a cafeteria 3/10 of the students are eating salads, and 3/5 are eating sandwiches. There are 20 students in the cafeteria. Ho
Elanso [62]

We know that 3/10*20=6 students are eating salads.

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Liz had attended class everyday since she started school as a kindergartener. She said she had been in school for about a thousa
nika2105 [10]
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The mean age of De Anza College students in a previous term was 26.6 years old. An instructor thinks the mean age for online stu
Vlad1618 [11]

Answer:

hope this help good luck

Step-by-step explanation:

a. H0: μ = 26.6

b. Ha: μ > 26.6

c. Let x = the mean age for online students at De Anza College.

d. Student’s t-distribution

e. 9.98

f. p-value = 0.0000

g. Check student’s solution.

h. i. Alpha: 0.01        

ii. Decision: Reject the null hypothesis.        

iii. Reason for decision: The p-value is less than 0.01.        

iv. There is sufficient evidence to conclude that the mean age of online students at De Anza College is greater than 26.6 years.i. (28.8, 30.0)

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3 years ago
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