9514 1404 393
Answer:
Step-by-step explanation:
When x represents the number, "the sum of 3 and a number" is (x+3). Twice that sum is 2(x+3). "Is 30" means this expression is equal to 30:
2(x +3) = 30 . . . . an equation for the given conditions
__
We can solve this equation by dividing by 2:
x + 3 = 15
x = 12 . . . . . . subtract 3
The number is 12.
Answer:
8
Step-by-step explanation:
Area = 1/2bh
200 = 1/2(50)h
200=25h
8=h
Answer:
3 1/5
Step-by-step explanation:
"1 over 5" means 1/5
3 "1 over 5" would then translate to: 3 1/5
~
Use the vertex form, y = a ( x − h ) 2 + k , to determine the values of a , h , and k . a = 2 h = − 6 k = − 2 Find the vertex ( h , k ) . ( − 6 , − 2 )
Answer:
45%
Step-by-step explanation:
PLEASE MARK ME AS BRAINLIEST I REALLY WANT TO LEVEL UP