How much interest will Sara pay if she borrows: $1,400 at 4% for 60 months.
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Answer:
200 litres
Step-by-step explanation:
let g be gasoline used, d the distance travelled and s the speed, then the equation relating the quantities is
g = kd ← k is the constant of variation
To find k use g = 25, d = 100 and s = 100, then
25 = k × 100 × = k × 100 × 10 = 1000k ( divide both sides by 1000 )
0.025 = k
g = 0.025d ← equation of variation
When d = 1000 and s = 64, then
g = 0.025 × 1000 × = 0.025 × 1000 × 8 = 200