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tatuchka [14]
3 years ago
8

Andre and Elena are each saving money Andre starts with $100 in his savings account and adds five dollars per week Elena starts

with $10 in her savings account and add 20 each week after four weeks who has more money in her savings account
Mathematics
2 answers:
densk [106]3 years ago
7 0

Answer: Andre

Step-by-step explanation: coz I juss know..

Roman55 [17]3 years ago
7 0

Answer:

Andre

Step-by-step explanation:

This situation can be modeled with the equations:

A = 100 + 5w

E = 10 + 20w

Let w represent the number of weeks that have passed since they have started saving money. Andre(A) has saved $5 per week and Elena(E) has saved $20 per week. Substituting 4 into the equation (because 4 is the number of weeks that have passed so far) and evaluating we come to the realization that Andre still has more money than Elena because he now has $120 and Elena has $90.

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Q5: The probability that event A occurs is 5/7 and the probability that event B occurs is 2/3 . If A and B are independent event
bekas [8.4K]

Answer:

P(A \cap B)

And we can use the following formula:

P(A \cap B)= P(A)* P(B)

And replacing the info we got:

P(A \cap B) = \frac{5}{7} \frac{2}{3}= \frac{10}{21}=0.476

Step-by-step explanation:

We define two events for this case A and B. And we know the probability for each individual event given by the problem:

p(A) = \frac{5}{7}

p(B) = \frac{2}{3}

And we want to find the probability that A and B both occurs if A and B are independent events, who menas the following conditions:

P(A|B) = P(A)

P(B|A) = P(B)

And for this special case we want to find this probability:

P(A \cap B)

And we can use the following formula:

P(A \cap B)= P(A)* P(B)

And replacing the info we got:

P(A \cap B) = \frac{5}{7} \frac{2}{3}= \frac{10}{21}=0.476

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3 years ago
Explain how you can tell that the equation, description, graph, and table all represent the same situation.
andrew-mc [135]

Answer:think of many situations you can come up with or problems you can solve which will end up with the same answer if u use different methods

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Last option. but idk
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