The keyboard of a piano is made up of octaves with 5 black keys in each octave and one extra black key. there are 36 black keys on a piano. how many full octaves are there on a piano?

Hi there.

Let number of octaves be X.

Equation :

7x+1=36

7x=36-1

7x=35

X= 35/7

X= 5.

Therefore there are 5 number of black keys in an octave.

Hope it helps u.

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g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)

5.25 ounces

step-by-step explanation:

divided 3/4 and 6