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: rectangular prism and a pyramid I think
Step-by-step explanation:
Answer:
-0.15
Step-by-step explanation:
the easiest way to do this is to convert all of the numbers to decimals. -2/5 becomes -0.4, and -1/4 becomes -0.25. Then you simplify the equation to get - 0.7 + 0.4 + 0.4 - 0.25, which you then solve to get -0.15.
Answer:
i am REALLLYYY not sure about my answer but i think its 6. i dont recommend you to put that answer in lol
Step-by-step explanation:
6 = 3/3
Answer:
well yes because 5 percent of 100 is 5 minus 30% + the 15% tip
