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shusha [124]
3 years ago
14

Joleen is baking strawberry cupcakes for a group of her friends at school. She knows to make 4 cupcakes she is going to need 2 ½

pounds of strawberries. How many pounds of strawberries will she need to buy in order to make 8 of her friends cupcakes? Explain how you got your answer.
Mathematics
2 answers:
saw5 [17]3 years ago
7 0

Answer:

5 cups

Step-by-step explanation:

garri49 [273]3 years ago
3 0

Answer:

5 pounds

Step-by-step explanation:

Joleen has 8 friends. Therefore she needs 8 cupcakes.

We know that 4 cupcakes requires 2.5 pounds of strawberries.

Since we are doubling the amount of cupcakes, we also need to double the strawberry amount.

4 x 2 = 8

2.5 x 2 = 5

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3 0
3 years ago
The coffee Lily likes is composed of 97.3% water and 2.7% cocoa. The coffee John likes is composed of 96% water and 4% cocoa. Ho
mestny [16]

30 ounces of the coffee John likes consists of

  • 0.96\cdot30=28.8 ounces of water
  • 0.04\cdot30=1.2 ounces of cocoa

To this mixture we're adding x ounces of water, so that the new mix has a total volume of 30+x ounces and matches the composition of the coffee Lily likes. This means it would consist of

  • 0.973\cdot(30+x)=28.8+x ounces of water
  • 0.027\cdot(30+x)=1.2 ounces of cocoa (same amount of cocoa as before because pure water is being added)

Solve for x:

0.973(30+x)=28.8+x\implies29.12+0.973x=28.8+x

\implies0.39=0.027x

\implies x\approx14.4

###

Just to confirm: the new mixture consists of

  • 28.8+14.4=43.2 ounces of water
  • 1.2+0=1.2 ounces of cocoa

giving a total volume of 43.2+1.2=44.4 ounces of coffee, and \dfrac{43.2}{44.4}\approx0.973, as required.

4 0
4 years ago
5 times the result of a number plus 7 equals 71 more than that number
lubasha [3.4K]
The answer is: 12.8
71 -7 = 64
64÷5=12.8
4 0
4 years ago
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Answer:

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Step-by-step explanation:

lets the blank = x

Convert 72% to decimal: 0.72

0.72x = 18

x = 18/0.72

x = 25

-Chetan K

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3 years ago
0.83 is 10 times as much as
densk [106]

Answer:

0.83 is 10 times as much as 0.083

Step-by-step explanation:

5 0
3 years ago
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