Ruby wants to start her own business taking photographs. She already has her own camera, but needs to purchase lights, a photo p
2 answers:
Answer:
$432.97 of her savings will be used to start her company.
Step-by-step explanation:
Ruby needs to purchase lights, a photo printer, and photo paper.
Total savings of Ruby = $840.32
The cost of the photo printer is $251.99, the cost of lighting is $150.00, and the cost for 100 sheets of photo paper is $30.98
Total cost = dollars
Hence, $432.97 of her savings will be used to start her company.
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Answer:
120
Step-by-step explanation:
Since we're dealing with a problem where the order matters and the first two letters are already chosen we need to subtract the number of letters and the number of available slots per group.
We use the permutation formula to find the answer, but before that let's check values.
n = 8
k = 5
Now since there are two letters already chosen we have to deduct two from both the value of n and k.
n = 6
k = 3
Now we can use the permutation formula:
The 3*2*1 cancels out and leaves us with:
So there are 120 possible ways to arrange eight letters into groups of five where order matters and the first two letters are already chosen.