Answer:
11/21
Step-by-step explanation:
34 and the 10 numbers in the 40s have at least one 4. If you include 30 and 50 in the range you're choosing from, then 11 out of the 21 numbers have at least one 4.
A randomly chosen integer from [30, 50] has a probability of 11/21 of having at least one 4.
Answer:
24 degrees
Step-by-step explanation:
4 1/2 + 4 3/4...
4 1/2 rounds to 5
4 3/4 rounds to 5
5 + 5 = 10
so she ran ABOUT 10 miles
Answer:
it c
Step-by-step explanation:
Answer: It means find the slope of each line.
Step-by-step explanation:
A is the line that runs from 0,-6 to 5,14 This is tricky because the scale of the y-axis is twice the value of the x-axis. So what looks like a slope (gradient) of +2 is actually +4. Figure the difference in y-values divided by the difference in x-values.
Same for line B.
I used 0 - 14 for the rise, and 4 -(-3) for the run. 7/-14 makes that slope a -2. That's negative two, not the apparent negative one!