Answer:
Step-by-step explanation:
The fractions need a common denominator before you can add them together.
The least common denominator is 15bc.
Answer:
here's the steps
Step-by-step explanation:
first of the numbers inside the [ ] is always positive.Now since the 3 is outside the [ ] you use it like a tool and don't change it, so nothing happen to it.since ^3 is missing a base (variable, cannot remember exact name) but is not missing ^3, which make them alike enough to multiply because 3 is outside of () nut the ^3 will stay the same (don't know why but that's how math works)
Answer:
3
Step-by-step explanation:
2 - -1= 3
5-4 = 1
3/1 = 3
Answer: 6 years
Step-by-step explanation:
Let Maria's age be x
Jonathan is four times Maria's age. This means that Jonathan age = 4x
In 3 years, he will be three times as old as Maria is then. This can be written as:
4x + 3 = 3(x + 3)
4x + 3 = 3x + 9
4x - 3x = 9 - 3
x = 6
Maria is 6 years
Answer: (-3,7)
Step-by-step explanation:
Flip the signs
