Answer:
4/15
Step-by-step explanation:
7/15 - 3/15 = 4/15
Answer:
231 feet of fabric
Step-by-step explanation:
Gina's curtain company is making curtains for a local hotel. She wants each curtain to be 36 inches long. At the fabric store, fabric is sold by the foot.
Converting from inches to foot
1 inch = 1/12 foot
36 inches = x feet
x = 36 × 1/12 foot
x = 3 feet
Hence, each curtain = 3 feet
If Gina's curtain company wants to make 77 curtains, how many feet of fabric will she need?
This is calculated as:
1 curtain = 3 feet
77 curtains = x
Cross Multiply
x = 77 × 3 feet
x = 231 feet
Hence, she would need 231 feet of fabric
A growth rate equation has a general form of:
f(x) = P (1 + r)^x
Where,
P = present value
r = rate of growth
x = number of years
If we write the given equation on that form, it would be:
f(x) = 4 (1 + 3)^x
Therefore we can see that the population’s growth rate is
300% per year. To make this formula to an equivalent of three times a year (3x),
we have to find the new r.
f(x)_3 = 4 (1 + r)^3x
To calculate this, we must take note that the expression or
value of (1 + r)^x must be constant. Therefore equate this with 4^x.
(1 + r)^3x = (4)^x
Taking the logs of both sides:
3x log (1 + r) = x log 4
Cancelling x:
3 log (1 + r) = log 4
3 (1 + r) = 4
1 + r = 4/3
r = 0.33
Therefore the new growth rate is 0.33 or 33%. (ANSWER)
And, the new correct function is:
f(x)_3 = 4 (1 + 0.33)^3x
or
f(x)_3 = 4 (1.33)^3x (ANSWER)
18/99 makes it 2/11 which is
0.18181818181818181818181818....
Is that what you wanted?
Thank you!
Hope I helped!
Happy Holidays!
:P
Answer:
Read Below
Step-by-step explanation:
The way you want to find the value of a ratio is
1. Determine the purpose of the ratio. You should start by identifying what you want your ratio to show.
2. Set up your formula. Ratios compare two numbers, usually by dividing them.
3. Solve the equation. Divide data A by data B to find your ratio. ...
4. Multiply by 100 if you want a percentage.
Hope this helps :D
