Answer:Step-by-step explanation:
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Answer:
5 15/22 hours
5.6818 hours
Step-by-step explanation:
Distance is equal to the rate times the time
D = rt
We know the rate = 88 km/hr and the distance = 500 km
Substitute these in
500 = 88 *t
Divide each side by 88
500/88 = 88t/88
5 15/22 hours
5.6818 hours
Filling in 16 for <em>a</em>, we have ...
... lower limit ≤ heart rate ≤ upper limit . . . . . . . this is the meaning of upper and lower limits
... 0.5×(220 -16) ≤ heart rate ≤ 0.9×(220 -16) . . . . . substitute given expressions
... 0.5×204 ≤ heart rate ≤ 0.9×204 . . . . . . . . . . . . . begin expression evaluation
... 102 ≤ heart rate ≤ 183.6
9514 1404 393
Answer:
y = 5/3x -5
Step-by-step explanation:
The slope is the ratio of "rise" to "run" for the line. Here, marked points are 5 units apart vertically and 3 units apart horizontally. The slope is ...
m = rise/run = +5/3 = 5/3
There is a marked point on the y-axis at y = -5. That is the y-intercept. Then your equation is ...
y = mx + b . . . . . line with slope m and y-intercept b
y = 5/3x -5 . . . . . line with slope 5/3 and y-intercept -5