With what exactly in what studies i'm a junior in high school so I should be able to help you
Answer:
50 black keys
Step-by-step explanation:
for every set of 7 white keys there are 5 black keys
72/7 = 10
so there is a total of 10 full sets of keys
then you have 2 white keys remaining but that doesn't matter because they will just be on the dies and already have a black key next
so this means that you only have to calculate the number of 10 sets of black keys and thats 5 x 10.
hope this helps : )
Answer:
2
Step-by-step explanation:
1 + 1 = 2
A diameter of a circle has to pass through the centre of the circle
The lines that pass through the centre are BD and AC
8 goes into 74 nine times but there is a remainder of 2
9 and a remainder of 2 or 9 and 1/4
