Answer:
Brother's age = 15
Sister's age = 9
Step-by-step explanation:
Answer:
225 minutes or 3 hours and 45 minutes
Step-by-step explanation:
45 (minutes per day) times 5 (days in a school week) = 225 minutes
or add 45 (minutes per day)+ 45+45+45+45 = 225
To get the hours:
Divide 225 by 60 (minutes per hour) and it is 3 - remainder 45.
Answer:
The correct answer is A.
Step-by-step explanation:
The rule with a function is every input has exactly one output. In the answer choices b, c, and d all of them has a repeating input or x value.
I do believe the answers in a row are A: x, B: 40, C: 12, D:y
Answer:
{-14, 4}
Step-by-step explanation:
the absolute value function only makes sure that the result always has a positive sign.
so, (x + 5) must be either +9 or -9 to make the original equation true. the absolute value would turn both into +9.
so,
x + 5 = 9
x = 4
and
x + 5 = -9
x = -14
that gives us the correct set of solutions as indicated above.
