Answer:
The answer is c. Sorry my last answer was wrong i think. If its abc its probably the other way around i didnt see which way it was going. Though if i was right the first time its either a or c
Step-by-step explanation:
Answer:
12 feet long bc of cross multiplying then dividing the product by 10 which gives you 12!
Step-by-step explanation:
Rate of drop of temperature = Change in temperature/Rate
=> (165 - 135)/15
=> 30/15
=> 2 ⁰F/min
Now, The time at which the temperature of will be 70⁰F = 70/Rate
=> 70/2
=> 35 min
Time for 110⁰ F
=> 110/2
=> 55 min
Distance=speed times time
if they take the same time, we cal the time , t
b=bike speed
w=walking speed
bikedistnace=17=bt
walkdistance=9=wt
b is 4 more than w
b=4+w
we have
17=bt
9=wt
b=4w
ok so
multiply first equation by 9 and 2nd by 17
153=9bt
153=17wt
set equal
9bt=17wt
divide both sides by t
9b=17w
sub b=4+w for b
9(4+w)=17w
distribute
36+9w=17w
minus 9w both sides
36=8w
divide both sides by 8
4.5=w
he walks 4.5kph
<span>A=30e^.198026t
= </span><span>30(e^.198026)^t
= 30(1.218994087)^t
approximately 21.90% every year
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