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Mamont248 [21]
3 years ago
9

Here's an easy question. Gina bought 2.5 pounds of peaches that cost $1.38 per pound at the grocery store. Amy went to the local

farmer’s market and purchased 3.5 pounds of peaches at $0.98 per pound. Who spent more money, and how much more?
A. Gina, $0.20

B. Gina, $0.02


C. Amy, $0.20


D.Amy, $0.02
Mathematics
2 answers:
frez [133]3 years ago
6 0

Answer:

B, Gina, $0.02

Step-by-step explanation:

Per pound is $1.38, so split it in half to get $0.69 for half a pound.

Then you have 1.38 + 1.38 + 0.68 = $3.45 total for Gina.

Per pound is $0.98, if you split that in half you get $0.49 for half a pound.

Add it up, 0.98 + 0.98 + 0.98 + 0.49 = $3.43.

You can see Gina spent more, and then you subtract 3.43 from 3.45 and get $0.02.

kakasveta [241]3 years ago
4 0
Is Gina the right answer
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The expected value of the game is $8.75.

----------------------

  • The expected value is the <u>sum of each outcome multiplied by it's probability</u>.
  • A probability is the <u>number of desired outcomes divided by the number of total outcomes</u>.

  • The probability of spinning a 2 and a vowel is: \frac{1}{4} \times \frac{2}{8} = \frac{2}{32}.
  • Thus, \frac{2}{32} probability of getting $50.

  • The probability of spinning 2 and a consonant is: \frac{1}{4} \times \frac{6}{8} = \frac{6}{32}
  • Thus, \frac{6}{32} probability of getting $25.

  • The probability of spinning 1 and a vowel is: \frac{3}{4} \times \frac{2}{8} = \frac{6}{32}.
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  • 32 - (6 + 6 + 2) = 18, thus, \frac{18}{32} probability of earning $0.

The expected value is:

E = \frac{2}{32}(50) + \frac{6}{32}(25) + \frac{6}{32}(5) + \frac{18}{32}(0)

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The expected value of this game is of $8.75.

A similar problem is given at brainly.com/question/24961584

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Hope this helped :)
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Answer:

x= (y+40)-(y-330)

Step-by-step explanation:

According to the information provided, the difference in their scores would be the result of subtracting Austin's SAT score from Alexandra's SAT score.

Then, as Alexandra's SAT score was 40 points above the average score this means that you have to add 40 to the average score to get her result. Also, as Austin's SAT score was 330 points below the average score, this means that you have to subtract 330 from the average score. With this you can write the expression:

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