Kiemanh is solving the equation 15 r minus 6 r = 36. What is the value of r?
2 answers:
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Answer:
Step-by-step explanation:
GIVEN: Catherine sells cupcakes c for each, The ingredients for each cupcake cost her
, and the sum of all her other expenses is
.
TO FIND: Equation to represent Catherine's profit from selling cupcakes.
SOLUTION:
Cost of ingredients for each cupcake
sum of all other expenses
Selling price of each cupcake
Total cupcakes sold
Now,
As we know that
putting values,
Hence the equation to represent Catherine's profit (p) from selling cupcakes for one month Catherine sells is
The amount of $7389.43 has to be invested at 5.9% interested continuously to have $15,000 after 12 years.
Step-by-step explanation:
The given is,
Future value, F = $15,000
Interest, i = 5.9%
( compounded continuously )
Period, t = 12 years
Step:1
Formula to calculate the present with compounded continuously,
...............(1)
Substitute the values in equation (1) to find the P value,
( ∵
)
( ∵
)
We change the P (Present value) into the left side,
≅ 7389.43
P = $ 7389.43
Result:
The amount of $7389.43 has to be invested at 5.9% interested continuously to have $15,000 after 12 years.