First convert the distance to miles
<span>9.5 × 10^12 km x 0.62 miles/km </span>
<span>= (0.62 × 9.5) x 10^12 miles </span>
<span>= 5.9 × 10^12 miles </span>
<span>But we want to triple that, because it is 3 light years (not just 1): </span>
<span>3 x 5.9 × 10^12 miles </span>
<span>≈ 18 × 10^12 miles </span>
<span>≈ 1.8 × 10^13 miles </span>
<span>Next divide by the speed to get the time (in hours). </span>
<span>t = 1.8 × 10^13 miles / 17000 miles/hour </span>
<span>Let's convert the speed to scientific notation: </span>
<span>t = 1.8 × 10^13 / 1.7 x 10^4 </span>
<span>t = (1.8 / 1.7) × (10^13 / 10^4) <-- when dividing powers with the same base, subtract the exponents </span>
<span>t ≈ 1.1 × 10^9 </span>
<span>Let's convert that back to standard notation. </span>
<span>Answer: </span>
<span>1,100,000,000 hours</span>
Answer:
Not proportional.
Step-by-step explanation:
Given ratios:
To tell whether the ratios are proportional or not.
Solution:
In order to tell whether the given ratios are proportional or not, we will reduce the fractions to the simplest numbers by dividing the numerator and denominator by their greatest common factor and then comparing them. If they are equal then the ratios are proportional else not proportional.
So, the simplest form of can be calculated by dividing both by 2 as it is the G.C.F.
the simplest form of can be calculated by dividing both by 2 as it is the G.C.F.
Now, since , hence the ratios are not proportional.
Answer:
P = 46.6 feet
Step-by-step explanation:
P = 2L + 2W, where P is perimeter, L is length, and W is width.
2 x Length (L) = 2 x 15.5 feet = 31 feet;
2 x Width (W) = 2 x 7.8 feet = 15.6 feet.
Add both length and width together:
2L + 2W = 30.1 + 15.6 = 46.6 feet.
The perimeter (P) = 46.6 feet.