Answer:
4cm
Step-by-step explanation:
each cm counts for 10 km and 40÷10=4
The distance between two points is the length of the shortest path between them. This shortest path is called a geodesic.
This is tricky. Fasten your seat belt. It's going to be a boompy ride. If it's a 12-hour clock (doesn't show AM or PM), then it has to gain 12 hours in order to appear correct again. How many times must it gain 3 minutes in order to add up to 12 hours ?
(12 hours) x (8 minutes/hour) / (5 minutes) = 240 times
Answer:
The given system has INFINITE NUMBER OF SOLUTIONS.
Step-by-step explanation:
Here, the given system of equation is given as:
2 x - 4 y = 12 ... (1)
- x + 2 y = -6 ...... (2)
Now, to use the ELIMINATION METHOD we either need to cancel out x coefficients or the y coefficient.
Now, to cancel out the x- coefficient in both the equations:
Multiply equation (2) with 2 and add with (1), we get:
2 x - 2x + 4 y - 4 y = 12 - 12
or, 0 = 0
Hence, the given system has INFINITE NUMBER OF SOLUTIONS.
Answer:
x = 8
Step-by-step explanation:
small triangle is similar to larger one
set up a proportion: <u> 9 </u> = <u> x + 4 </u>
9+12 x+4+2x
<u> 9 </u> = <u> x+ 4 </u> cross-multiply: 9(3x + 4) = 21(x + 4)
21 3x + 4 27x + 36 = 21x + 84
6x + 36 = 84
6x = 48
x = 8