Math, asked by Princesspinypony, 4 months ago

Ming used the calculations shown to find out how much he would spend on 6 pounds of ground beef if 10 pounds of ground beef cost $25.00.

StartFraction 10 pounds over 25 dollars EndFraction = StartFraction 10 pounds divided by 25 over 25 dollars divided by 25 EndFraction = StartFraction 0.4 over 1 EndFraction. Unit Price = 40 cents. 40 cents times 6 = 2 dollars and 40 cents.

What was Ming’s error?
He determined pounds per dollar by dividing 10 by 25 but wrote the unit rate as a dollar value.
He divided the numerator and the denominator of the fraction by 25.
He made a mistake when finding the quotient of 10 pounds and 25 dollars.
He made a mistake when finding the product of $0.40 and 6.

Answers

Answered by RvChaudharY50
5

Question :- Ming used the calculations shown to find out how much he would spend on 6 pounds of ground beef if 10 pounds of ground beef cost $25.00. What was Ming’s error ?

StartFraction 10 pounds over 25 dollars End Fraction StartFraction 10 pounds divided by 25 over 25 dollars divided by 25 End Fraction

StartFraction 0.4 over 1 End Fraction.

Unit Price = 40 cents.

40 cents times 6 = 2 dollars and 40 cents.

What was Ming’s error ?

A) He determined pounds per dollar by dividing 10 by 25 but wrote the unit rate as a dollar value.

B) He divided the numerator and the denominator of the fraction by 25.

C) He made a mistake when finding the quotient of 10 pounds and 25 dollars.

D) He made a mistake when finding the product of $0.40 and 6.

Solution :-

Solving his calculation we get,

→ Start Fraction 10 pounds over 25 dollars = (10 pounds / $25.00) = (10 pounds/ 25) / ($25. 00/25) = (0.4/1)

Ming gets ,

  • Unit Price = $0.40
  • $0.40 * 6 = $2.40

we can conclude that, Ming made the following division :-

  • (10/25) = 0.4

Conclusion :-

  • (10 / 25) = (2/5) = (2.0/5) = 0.4 => The result of the division is correct numerically.

But , the units of the result are incorrect.

As we can see , he divides 10 pounds by 25 dollars .

Then,

  • The correct units will be = (0.4 pound / $) .

Hence, we can conclude that, Option (A) is correct answer .

  • A) He determined pounds per dollar by dividing 10 by 25 but wrote the unit rate as a dollar value.

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