A) How many five-letter codes can be formed from two different vowels and three different consonants? Consider Y a vowel. b) How many of these codes contain the letter C? I need answer fast please help!

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

thats not a system of equations, that is a solution

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.