The value of t is:
a) when v = 15 then t = 3 hours
b) when v = 18 then t = 2.52 hours
<h3><u>Solution:</u></h3>
The relation between speed and time taken is given as:
It is given that for first 30 km, the speed of bicyclist is v km/hour
<em><u>
Time taken to cover first 30 km is given by:</u></em>
For next 17 km the speed of bicyclist is 2 km/hour greater than his original speed
so the speed to cover next 17 km = v + 2
<em><u>
Time taken to cover next 17 km is given by:</u></em>
Now total time t spent by the bicyclist to cover entire trip is given by
---- eqn 1
We have to find value of "t" for a) v = 15 and b) v = 18
<u><em>a) value of t when v = 15</em></u>
Substitute v = 15 in eqn 1
t = 2 + 1 = 3
So t = 3 hours
<u><em>b) value of t when v = 18</em></u>
Thus t = 2.52 hours
7.15= Seven and fifteen hundredths so .15 is 15/100
Final answer:
Answer:
x= amount of times that these kids ride their bikes to school in a week
D = total distance
w = weeks
Step-by-step explanation:
Step-by-step explanation:
a/q
three times a number = 3x
so,
3x - 2 = 10
so,
3x = 10 + 2
x = 12/3 = 4
x = 4
<em>hope </em><em>this</em><em> answer</em><em> helps</em><em> you</em><em> </em><em>dear.</em><em>.</em><em>.</em><em>.</em><em>take </em><em>care</em><em> and</em><em> may</em><em> u</em><em> have</em><em> a</em><em> great</em><em> day</em><em> ah</em><em>ead</em><em>!</em>