Answer:
b. 67
Step-by-step explanation:
In order for the average to be 62, the total of differences from 62 must be zero. The two given numbers have differences of -4 and -1, for a total of -5. In order for the total of differences to be zero, the third number must have a difference from 62 of +5. It must be 62+5 = 67.
Jon's height at his third checkup was 67 inches.
Answer:
2.24
Step-by-step explanation:
The absolute value sign means that any negative number inside turns positive. Its easier to "see" this by thinking of distances. Distances can never be negative, so when you calculate them, in your head you just remove the negative sign. That's what this absolute value sign does.
Answer:
3/12
Step-by-step explanation:
here is the answer
<span>Determine the x- and y-intercepts of each line x+3y=24
+ x=0, so y= 24:3=8 and we have </span><span>y-intercepts is 8
</span>+ y=0, so we have x=24, x<span>-intercepts is 24
Have fun</span>
Answer:
Her average speed is 94 km/h
Time taken is 3.5 hours
Step-by-step explanation:
Let Evan’s average speed be x km/h.
now since Meghan drove faster, according to the question, we can say her average speed would be x + 6 km/h
Mathematically, time = distance/speed
so; since time is the same; we have
308/x = 329/(x + 6)
cross multiply
329(x) = 308(x + 6)
329x = 308x + 1848
329x-308x = 1848
21x = 1848
x = 1848/21
x = 88 km/h
Meghan average speed = x + 6 = 88 + 6 = 94 km/h
Time taken would be 329/94 = 3.5 hours
