50 years. 2 times 5 is 10. Add a zero. 1,000,000
Answer:
35
Step-by-step explanation:
Here we see 5 black keys for every 7 white keys.
So the ratio is 5:7
If we need 49 white keys, find the amount we scale the original ratio by:
49/7 = 7
So we are scaling by a factor of 7.
The number of black keys would be 5 * the scale of 7. = 35
So there should be 35 black keys.
Its 43 because between each number it has a pattern that is 9,13,6 then it repeats
Answer: the degree of the angle if that is what you're asking is 257 degrees
