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.
5x6=30
6x6=36
You would need 1 more 6
I can't explain this very well, sorry.
Answer:
900 divided by 30.48 =
Step-by-step explanation:
<u> 0 0. 0 3 3</u>
9 0 0 3 0. 4 8 0
− 0
3 0
<u> − 0 </u>
3 0 4
<u> − 0 </u>
3 0 4 8
<u> − 2 7 0 0 </u>
3 4 8 0
− <u>2 7 0 0</u>
7 8 0
Your answer is now many
Branlist plz
The answer is (150,1) (2,112.5) and the last is (3,84) that’s the answer
Answer:
tens=5
Step-by-step explanation:
