WHAT IN THE GRADE IS THIS?
Answer:
a) 1350 minutes
b) 790 minutes
Step-by-step explanation:
a) Firstly, we know that:
1 hour = 60 minutes
So take 10 hours out of 22,
10 hours = (60 x 10) minutes
10 hours = 600 minutes
Thus, you have another 12 hours remaining so take another 10 hours which is another 600 minutes. Finally you have 2 hours remaining.
2 hours = (60 x 2) minutes
2 hours = 120 minutes
To get the total answer, add everything and don't forget the other 30 minutes.
600 + 600 + 120 + 30 = 1350 minutes
b) Like we did before, take out 10 hours
10 hours = 600 minutes
Now we have 3 hours remaining so:
3 hours = (60 x 3) minutes
3 hours = 180 minutes
Add everything together, without forgetting the other 10 minutes.
600 + 180 + 10 = 790 minutes
Answer:
Step-by-step explanation:
To solve equations, we use inverse operations. Normally, we use PEMDAS to simplify an equation. To solve it, we use the inverse of each in this order SADMEP. Solving an inequality is the same except for step. When dividing by a negative, the sign of the inequality changes.
We have in simplified form. We begin by subtracting or adding constants across the equal sign. Then doing the same with the variable terms. We finish by dividing by the coefficient of the variable term.
To graph, we draw a number line, draw an open circle at -3.
Since it is not equal to, we do not fill it in. We leave it open. We also draw an arrow to the right of -3
Part A)
His sample only involves days during the summer (if Devin is in the northern hemisphere), which would mean that the high temperatures he'll record are likely to be higher than the average. Therefore, the sample mean he computes does not represent the average high temperature for the whole year.
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Part B)
To correct his mistake, he needs to sample every day of the year. Or he could sample a few days of each month (say the first ten days of each month). That way the entire year is better represented. The other seasons of spring, fall and winter are included now.