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.
Answer:
Nothing at allllllll
Step-by-step explanation:haha
Your answer will be x2-2x-15
Answer:
30,000
Step-by-step explanation:
Okay so you know the formula. I would presume, so first you do 600 times 5 by doing just 6 times five which is 30 then adding the two zeroes back on. Then, proceed to multiply that by 10 by moving the decimal spot adding another 0. I hope this is correct.