So first convert 2 3/4 to improper fraction
2 3/4=8/4+3/4=11/4
11/4a=19 1/4
convert 19 1/4 to improper
19 1/4=76/4+1/4=77/4
11/4a=77/4
multiply both sdie sby 4
11a=77
divide by 11
a=7
Answer:
33
Step-by-step explanation:
25/30=45/x
x=63
63-30=?
?=33
Answer:
Its b!!!!!!
Step-by-step explanation:
Answer:
use the zero as an common multipal
Step-by-step explanation:
True, this is a Pythagorean identity.