Joey's average speed is 1.5 hours for 1 km
Answer: No solution
Step-by-step explanation:
7(x+4) - 6(x+3) = x + 5
7x + 28 - 6x - 18 = x + 5 distributing
7x - 6x - x = -28 + 18 +5
0 = -5 <u>Not true</u>
No solution
Answer:
It takes 4.75 hours to travel 247 miles.
Step-by-step explanation:
This question is solved by proportions, using a rule of three.
A car travels at an average speed of 52 miles per hour.
This means that in 1 hour, the car travels 52 miles. How many hours for it to travel 247 miles?
1 h - 52 m
x h - 247 m
Applying cross multiplication
It takes 4.75 hours to travel 247 miles.
Answer:
20%
Step-by-step explanation:
Answer:
see below
Step-by-step explanation:
There are some subtleties here.
<u>Drawing conclusions</u>
When conclusions are drawn based on patterns, it is called <em>inductive</em> reasoning. When those conclusions are drawn based on facts, it is called <em>deductive</em> reasoning.
<u>Theories and proofs</u>
When a pattern is observed, it gives rise to a <em>conjecture</em>. If there is a <em>counterexample</em>, then the conjecture must be declared false. If an argument can be made based on logic, then the conjecture is said to have a <em>proof</em>. A proven conjecture (statement) can then be referred to as a <em>theorem</em>.