Answer:
y = 0.5x
Step-by-step explanation:
Given that x and y vary directly then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition x = 1, y = 0.5
k = = = 0.5
y = 0.5x ← equation of variation
76,000,000
Look at the 100,000 place and see whether to round up or down - 8 is larger than 5, therefore 75,000,000 gets rounded up to 76,000,000
2.4 hours
It could be 2/4+1/4
2+1=3 and they both have a denominator of 4