Mathematics, 07.01.2020 01:31 Jenniferojeda2002

Kyle's birthday party in 2007 cost $d$ dollars per person and $p$ people attended. in 2008, the cost per person doubled and the number of people attending the party also doubled. what is the ratio of the total cost of the party in 2007 to the total cost of the party in 2008?

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Answer from: lnbrown5633

The ratio of the total cost of the party in 2007 to the total cost of the party in 2008 = 1: 4

Step-by-step explanation:

It is given that Kyle's birthday party in 2007 cost $d$ dollars per person and $p$ people attended.

Then , the total cost of the party = Cost per person x Number of people attended.

For 2007, Total cost = d x p = dp (1)

In 2008, the cost per person doubled and the number of people attending the party also doubled.

i.e. Cost per person = 2d

Number of people attended = 2p

For 2008, Total cost = 2d x 2p = 4dp (2)

From (1) and (2) , the ratio of the total cost of the party in 2007 to the total cost of the party in 2008 will be :

$\dfrac{pd}{4pd}$

Cancel pd from the numerator and the denominator , we get $\dfrac{1}{4}$

Hence, the ratio of the total cost of the party in 2007 to the total cost of the party in 2008 = 1: 4

Answer from: Quest

answer: the answer to your question is parallel

Answer from: Quest

a) one student is chosen from classroom a, then a student is chosen from classroom b.

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b. this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes. this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes. this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes. this makes them dependent events.

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