Answer:
$1
Step-by-step explanation:
Let's call the ringtone r. If the ringtone and $3 equals $4, then we can write the equation $4=$3+r. To solve, all you have to do is isolate the r by subtracting 3 on each side.
Answer:
Undefined at x = 2 and x = -2
Step-by-step explanation:
(5x²+x+11)/(x²-4)
Function becomes undefined when the denominator goes to zero.
x² - 4 = 0
x = 2, -2
Answer:
Step-by-step explanation:
13
Answer:
21.9 kilograms
Step-by-step explanation:
To find the total amount of sand, We need to add the new to the old. Lets have x be the total amount of sand.
14500+7400=x
Add them up
21900=x
The total amount of sand is 21900 grams
Now to find the kilograms we need to divide this number by 1000. Let y be the kilogram amount.
21900/1000=y
divide
21.9=y
There are 21.9 kilograms
