Answer:
50 dollars per month
Step-by-step explanation:
Given
Required
Determine the rate of savings
Suppose in a month, she saves x amount.
In 2 months, she would save 2x
When 2x is added to the initial savings, it gives the total amount saved.
So, we have:
Collect Like Terms
Divide both sides by 2
<em>Hence, she saves $50 dollars monthly</em>
To subtract fractions, let's put a generic example.
Be the fractions
(a / b) - (c / d)
With a, b, c and d other than zero.
The subtraction of fractions is given by:
(a / b) - (c / d) = ((a * d) - (c * b)) / (b * d).
If the fractions have the same denominator then the subtraction is
(a / b) - (c / b) = (a-c) / (b)
answer
(a / b) - (c / d) = ((a * d) - (c * b)) / (b * d)
(a / b) - (c / b) = (a-c) / (b)
To solve this we are going to use the free distance fallen formula:
where
is the distance
is the gravity of Earth
is the time in seconds
We know from our problem that the
penny fell off the top of the building and hit the sidewalk below 3.1 seconds later, so
. Lets replace the value in our formula:
meters
We can conclude that the penny fell a distance of 47.098 meters
Answer:
16 + 4n
3(x - 8)
(5 × y) - 3
Step-by-step explanation:
16 increased by 4 times a number:
16 + 4n
Three times the difference of x and 8:
3(x - 8)
3 less than the product of 5 and y:
(5 × y) - 3
