Answer:
r=7
Step-by-step explanation:
6r-7+90+55=180
6r+138=180 ----- 6r=180-138
6r=42 ----- divide both sides by 6
r=7
(We get the 90 from the 90degrees in the middle of this supplementary angle and the total, 180, from the straight angle made from all three angles.)
hope this helps!
Answer:
x = 1 and y = 11
Step-by-step explanation:
To start, let's substitute in y into the first equation. We will get 5x + 3 (3x + 8) = 38. Now, distribute the 3 in the 2nd term to get 5x + 9x + 24 = 38. Add like terms to get 14x + 24 = 38, and subtract 24 from both sides to get 14x = 14. Now, divide both sides by 14 to get x = 1. Plug this back in to get that y = 11.
Answer:
Assuming null hypothesis - that there is no difference in the cell phone bills between out of state and in state.
Step-by-step explanation:
Answer:
number is 12
Step-by-step explanation:
One-third of a number is 2 greater than one-sixth of the same number
Let the unknown number be x
One-third of x is 2 more than one-sixth of x
least common denominator is 6, multiply each term by 6
subtract x from both sides
x=12
So the number is 12
Answer:
im thinking 200 seals
Step-by-step explanation:
i don't have time sorry but you are welcome
