Answer with proof in attachment.
15 3
----=----
100 20
Divide by least common factor which is 5
Answer: 707 km/h
Step-by-step explanation:
let c = speed of current
16.5 + c = speed of sailboat downstream
16.5 - c = speed of sailboat upstream
distance = travel time * speed
﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋
2(16.5 + c) = 5(16.5 - c)
33 + 2c = 82.5 - 5c
7c = 49.5
c = 7.07 km/h
It is decreasing percentage at 40%
Answer:
$11 approx
Step-by-step explanation:
Given data
Total cost of album= $11.65
Tax= 6%
Let the cost of the album without tax be x
x+ 6/100*x=11.65
x+0.06x=11.65
1.06x=11.65
x= 11.65/1.06
x=10.99
Hence the cost is $11 approx
