Answer:
6.11km/hr
Step-by-step explanation:
Let the speed that Kelli swims be represented by Y
Speed of the river = 5km/hr
Distance = Speed × Time
Kelli swam upstream for some distance in one hour
Swimming upstream takes a negative sign, hence:
1 hour ×( Y - 5) = Distance
Distance = Y - 5
She then swam downstream the same river for the same distance in only 6 minutes
Downstream takes a positive sign
Converting 6 minutes to hour =
60 minutes = 1 hour
6 minutes =
Cross Multiply
6/60 = 1/10 hour
Hence, Distance =
1/10 × (Y + 5)
= Y/10 + 1/2
Equating both equations we have:
Y - 5 = Y/10 + 1/2
Collect like terms
Y - Y/10 = 5 + 1/2
9Y/10 = 5 1/2
9Y/ 10 = 11/2
Cross Multiply
9Y × 2 = 10 × 11
18Y = 110
Y = 110/18
Y = 6.1111111111 km/hr
Therefore, Kelli's can swim as fast as 6.11km/hr still in the water.
Word Form:
Two and fifty-one hundredths
Expanded Form:
2 + 0.5 + 0.01
Hope I Helped You!!! :-)
Have A Good Day!!!
The answer is times the 5500 adding the 6600 and as it adds up the box rate to 1.75 the answer is 1.75 insterest rate and 132000 dollars left
<em>A 64 ounce bottle of organic orange juice costs $14.72. What is the price
</em>
<em>per ounce?; </em>0.23
<em>Anna typed 600 words in 15 minutes. How many words can she type per
</em>
<em>minute?; </em> 40 words per minute
Answer:
2
Step-by-step explanation:
The example of speed and time is a basic and appropriate example of inversely proportional. As the speed increases, the time to complete your trip will decrease
