Answer:
LCD of 3/8 and 3/10 is 40. The Equivalent fractions are 3/8 = 15/40 and 3/10 = 12/40 hope this helps :)
Step-by-step explanation:
A
I would choose the first system to stay the same because it would easier to multiply than divide (something along those lines)
b
if you choose the first system) you would multiply the 2nd equation by a -5
Answer:
32
Step-by-step explanation: 10+10+12=32
40/50 is the ratio because the cos formula is adjacent over hypotenuse and you can reduce it to 4/5 as a fraction :)
