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3. tans spends \\(\\frac{2}{5}\\) of her earnings on a phone game. she …

Question

  1. tans spends \\(\frac{2}{5}\\) of her earnings on a phone game. she spends half of her remaining money on music. if her favorite artist’s new album costs $10, how much money did tans have at first?
  1. mr. vance gets money for his birthday. he spends \\(\frac{2}{7}\\) of the money on new shoes. he gives the remaining money to 3 different charities. he gives the same amount to each charity.

a. what fraction of his money does mr. vance give to each charity?

b. if mr. vance gives $40 to each charity, how much money did he get for his birthday?

  1. leo uses three bags of flour to make cookies. the amount of flour in each bag is the following:
  • \\(\frac{3}{4}\\) cups of flour
  • \\(1\frac{1}{2}\\) cups of flour
  • \\(1\frac{3}{4}\\) cups of flour

each batch of cookies needs \\(1\frac{1}{4}\\) cups of flour. how many batches of cookies can leo make?

  1. tyler has a pitcher of \\(1\frac{3}{4}\\) liters of lemonade. tyler pours an equal amount of lemonade into 3 cups. afterward, there is \\(\frac{1}{2}\\) liter of lemonade remaining in the pitcher. how many liters of lemonade are in each cup?

Explanation:

Response
Problem 3 (Assuming the first problem about Tans spending money)

Step 1: Find remaining money after spending on game

Let total money be \( x \). She spends \( \frac{2}{5}x \) on a game. Remaining money is \( x-\frac{2}{5}x=\frac{3}{5}x \).

Step 2: Find money spent on clothes (half of remaining)

She spends half of remaining on clothes, so that's \( \frac{1}{2}\times\frac{3}{5}x = \frac{3}{10}x \).

Step 3: Given she spends $15 on clothes, find total money

If \( \frac{3}{10}x = 15 \), then \( x=15\div\frac{3}{10}=15\times\frac{10}{3}=50 \).

Step 4: Find money left (total - game - clothes)

Money on game: \( \frac{2}{5}\times50 = 20 \). Money on clothes: 15. Money left: \( 50 - 20 - 15 = 15 \).

Step 1: Total fraction spent on shoes and charity

He spends \( \frac{2}{7} \) on shoes and then distributes remaining \( 1 - \frac{2}{7}=\frac{5}{7} \) to 3 charities equally.

Step 2: Find fraction per charity

Fraction per charity: \( \frac{5}{7}\div3=\frac{5}{7}\times\frac{1}{3}=\frac{5}{21} \).

Step 1: Let total money be \( x \)

Fraction per charity is \( \frac{5}{21}x \), and it's given as $40. So \( \frac{5}{21}x = 40 \).

Step 2: Solve for \( x \)

\( x = 40\div\frac{5}{21}=40\times\frac{21}{5}=168 \).

Answer:

The money left is $15.

Problem 4a (Mr. Perez's money distribution)