Anzelm wants to burn 540 calories while jogging. Jogging burns about 12 calories per minute.
he usually plans to stop and rest for about 5 minutes.
m represents the total minutes.
12 calories per minute.
for m minutes the calories burn is 12m
He stop and rest for about 5 minutes. so we need to subtract 5 from total minutes
So expression becomes 12(m-5)
He wants to burn 540 calories. So we set the calories = 540
The equation becomes ,
12(m-5) = 540
Now we solve for m , total number of minutes
12(m-5) = 540(divide by 12 on both sides)
m - 5 = 45
m = 50 ( add 5 on both sides)
Anzelm should plan to be out jogging for 50 minutes
Answer:
Step-by-step explanation:
Ron and Pam each have 20 pennies.
Ron will put his pennies into 4 groups.
In each group of Ron the number of pennies =
= 5 pennies
Pam will put her pennies into 5 groups.
In each group of Pam the number of pennies =
= 4 pennies
Ron will have 5 pennies in each group and Pam will have 4 pennies in each group, because Ron will make less groups of pennies than Pam.
Hence Ron will have more pennies in each group than Pam.
Please solve with work
Which statements are true? Choose exactly TWO answers that are correct.
Image:
Dentist Mean patient age MAD
Appiah 43 9.7
Cantwell 29 13.9
Singh 41 14.1
A. Dr. Appiah’s patients’ ages vary more than do Dr. Cantwell’s patients’ ages.
B. Dr. Appiah’s patients’ ages vary less than do Dr. Singh’s patients’ ages.
C. Dr. Cantwell’s patients’ ages and Dr. Singh’s patients’ ages vary about the same amount.
D. Dr. Singh’s patients’ ages and Dr. Appiah’s patients’ ages vary about the same amount.
I think it's A and B.
10 points for the correct answer!
Answer:
Option B is right.
Step-by-step explanation:
Given that Three dentists wanted to compare the ages of their patients. They each calculated their patients’ mean age and the mean absolute deviation of their ages. They displayed the results in a table.
Dentist Mean MAD
Appiah 43 9.7
Cantwell 29 13.9
Singh 41 14.1
Mean absolute deviaiton is a measure of deviations of all entries from the mean.
We find that maximum variation is that of Singh followed by Cantwell and Appaiah.
Option A is wrong as Dr. Appiah’s patients’ ages do not vary more than do Dr. Cantwell’s patients’ ages.
B. is true.
Dr. Appiah’s patients’ ages vary less than do Dr. Singh’s patients’ ages.
C is false Dr. Cantwell’s patients’ ages and Dr. Singh’s patients’ ages vary about the same since tey are 13.9 and 14.1 hence different.