Answer:
18 and 20, 4
Step-by-step explanation:
Math reasoning 1:
Set the first number as x and the other one as x+2 because it is a consecutive even number.
x+x+2=38
2x=36
x=18
18+2=20
The 2 consecutive numbers are 18 and 20
Problem solving 1:
Write out equation first, set the unknown number as x
5+x=9
x=4
If the boat can travel 45 mph in still water and the current is 10 mph, down stream, or with the current, has the boat moving at 55. Upstream has the boat moving 35 mph. It took t time to go with the current and an hour longer, t + 1, to go against it. Going from point A to B and back to A again means that the trip there was the same distance as the trip back. So d is the same for both upstream and downstream. The equation for upstream is d = 35(t + 1) or d = 35t + 35; the equation for downstream is d = 55t. Since the distances are the same, the transitive property says that so are the rates and times; therefore, we can set those equal to one another. 35t + 35 = 55t. Solve for t. When we find that t = 7/4 (1 3/4 hours), we sub that in to solve for distance. 55(7/4) = 96 1/4 miles.
Answer:
your answer would be 16
Step-by-step explanation:
Answer:
cos 25° = X/11
and
sin 65° = X/11
is this good enough or do you need more workings?
Answer:
The Answer is A.
Step-by-step explanation:
I just took the test. ༼ つ ◕_◕ ༽つ
