What is the solution?
1 answer:
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Answer:
8
Step-by-step explanation:
0) the basic formula is: L=v*t, where L - distance, v - speed/velocity; t - time;
1) if the person's speed in still water is 'v' and the speed of water is 5 (according to the condition), then the upstream speed is 'v-5' and the downstream speed is 'v+5';
2) according to the condition the upstream time and the downstream time are the same, it means t₁=t₂=t, where t₁=upstream time and t₂=downstream time;
3) according to the items above it is possible to make up the equation of the upstream travel: t(v-5)=3; ⇒ t=3/(v-5);
4) according to the items above it is possible to make up the equation of the downstream travel: t(v+5)=13; ⇒ t=13/(v+5);
5) if t=3/(v-5) and t=13/(v+5), then
Answer:
Part 1) The total square footage of the fence is
Part 2)
Step-by-step explanation:
Part 1) what is the total square footage of the fence ?
we know that
The area of the fence is equal to
substitute the values
Part 2) How much will Jake get paid
Using proportion
Answer:
- We want x
- We have a 30-60-90 triangle
- So we get