The fractions you use must be the correct conversion factors.
1 km = 1000 m, so you can have the fraction (1 km)/(1000 m) or the fraction (1000 m)//(1 km). You must choose the correct one for this problem.
1 hr = 60 min, so you can have the fraction (1 hr)/(60 min) or the fraction (60 min)/(1 hr). Again, you must choose the correct one for this problem.
The important thing is to choose the correct fraction from the choices.
How do you know which conversion fractions to use?
You look at the given units and the units you want.
You must pick the conversion fraction that will cancel out the units you DON'T want, leaving the units you want.
You have a speed in km/hr.
km is in the numerator. To cancel out km, you must pick the conversion fraction that km in the denominator.
hr is in the denominator. To cancel out hr, you must pick the fraction that has hr in the numerator.
Notice that km and km cancel out leaving m.
Also, hr and hr cancel out leaving min.
Answer:
I'm pretty sure you just divide 31 with 20 and then you get 1.55 and after you get 1.55 you multiple that by 100 to get 155% which will be the percent you need
Step-by-step explanation:
Answer:
6 hours
Step-by-step explanation:
let the no. of hours she rent the bike be x
then,
13 + 7*x = 55
13 + 7x = 55
7x = 55 -13
7x = 42
x = 6
Answer:
D
Step-by-step explanation:
This is an arithmetic sequence since there is a common difference between each term. In this case, adding
5
to the previous term in the sequence gives the next term. In other words,
a
.
This is the formula of an arithmetic sequence.
a n = a 1 + d ( n − 1 ) Substitute in the values of a 1 = 4 and d = 5 . a n = 4 + ( 5 ) ( n − 1 ) Simplify each term. Tap for more steps... a n = 4 + 5 n − 5 Subtract 5 from 4 . a n = 5 n − 1
Answer:
Mike
Step-by-step explanation:
Hope this helped!
~Emma~