Given :
Ruth wants to buy a skateboard for $44.
She has $100 in her account. She spent $11.36 to buy stationary.
She also wants to buy some comic books for $3.72 each.
To Find :
The maximum number of comic books, n, that Ruth can buy so that she has enough money left to buy the skateboard.
Solution :
Money left after buying skateboard and stationary is :
Money left = $(100 - 11.36 - 44)
Money left = $44.64
Number of comic she can buy is :
Therefore, she can buy a maximum of 12 books.
Hence, this is the required solution.
Kim used 4 tulips in the bouquet.
Step-by-step explanation:
Tulips used = x
Daffodils used = x²
Total flowers in bouquet = 20
According to given statement;
Factorizing the Eqn
Either,
x+5=0 => x= -5
Or,
x-4=0 => x = 4
As the number of flowers cannot be negative, therefore,
x = 4 (Where x is the number of tulips used)
Kim used 4 tulips in the bouquet.
Keywords: factorization, subtraction
Learn more about factorization at:
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I took the liberty of finding for the complete question.
And here I believe that the problem asks for the half life of Curium. Assuming
that the radioactive decay of Curium is of 1st order, therefore the
rate equation is in the form of:
A = Ao e^(-kt)
where,
A = amount after t years = 2755
Ao = initial amount = 3312
k = rate constant
t = number of years passed = 6
Therefore the rate constant is:
2755/3312 = e^(-6k)
-6k = ln (2755/3312)
k = 0.0307/yr
The half life, t’, can be calculated using the formula:
t’ = ln 2 / k
Substituting the value of k:
t’ = ln 2 / 0.0307
t’ = 22.586 years
or
t’ = 22.6 years
Answer: r>13
Step-by-step explanation:
The sign is less than so r +8 has to be 20 or less.
Answer:
The y-intercept is 15 and the slope is 5.5
y=5.5x+15
Step-by-step explanation:
