Rodrigo practiced playing the guitar 16 1/3 hours over the past 3 weeks. He practiced for 5 1/4
hours during the first week and 5
2
3
hours during the second week.

How much time did Rodrigo spend practicing duri
ng the third week? Use the numbers and symbols to select the equation that represents the problem. Then solve the equation. Symbols may be used more than once or not at all.

Step-by-step explanation:

You can first add the whole numbers together-

16+5+5 = 16+10= 26

Next, we can find a common denominator for all the fractions

since one of the denominators is 3 and the other one is 4, we can multiply them to get 12.

Now, we can change all the denominators to 12 and multiply as needed

Finally, we can add up the fractions

Now we can add the whole number total with the fraction total

So, our answer is

Hope this helps!!!

Let me know in the comments if I should change anything or if the answer was perfect!!!

I wasn't able to select any equations because I didn't know which equations there were. :)

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;