Mathematics: In which of these pairs of numbers is 2 3/5 greater than the first and less than the second? a 2, 2 1/4 b 2.1, 2.3 c 2 1/2, 2 3/4 d 2.7, 3

In which of these pairs of numbers is 2 3/5 greater

Ответ:

taylorwhitfield6

25.05.2020

Correct anwer is option C (option c is correct because 2.5( $2\frac{1}{2}=2.5$ )) is less than 2.6( $2\frac{3}{5}=2.6$ ) and less than 2.75( $2\frac{3}{4}=2.75$ ))

Step-by-step explanation:

option a

$2\frac{3}{5}=2.6$

option a cannot be correct because 2 and 2.25 $2\frac{1}{4}=2.25$ are less than 2.6( $2\frac{3}{5}=2.6$ )

option b

option b cannot be correct because 2.1 and 2.3 both are less than 2.6( $2\frac{3}{5}=2.6$ )

option c

$2\frac{1}{2}=2.5$

option c is correct because 2.5 is less than 2.6( $2\frac{3}{5}=2.6$ ) and less than 2.75( $2\frac{3}{4}=2.75$ )

option d

option d is not correct because 2.7 is greater than 2.6( $2\frac{3}{5}=2.6$ )

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Ответ:

GreenHerbz206

27.01.2020

Mathematics

The result is the same.

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.

Please have a look at the attached photo.

Given the information:

square 12 inches wide3-inch diameter cookies are cut => its radius is: 1.5 inches

Hence we can find some information:

The area of the square is: $12^{2} = 144$ square inches The area of a cookies is: $r^{2}$ π = 3.14* $1.5^{2}$ = 7.065 square inches The total number of 3-inch cookies are: 4*4 =16

=> The total area of the cookies is: 16* 7.065 = 113.04 square inches

=> how much cookie dough is "wasted" when 3-inch cookies are cut:

= The area of the square - The total area of the cookies

= 144 - 113.04 = 30.96 square inches

If the diameter is increased to 4 inches => its radius: 2 inches, we have:

The area of a cookies is: $r^{2}$ π = $2^{2} *3.14 = 12.56$ square inches The total number of 3-inch cookies are: 3*3 =9

=> The total area of the cookies is: 9* 12.56 = 113.04 square inches

=> how much cookie dough is "wasted" when 4-inch cookies are cut:

= The area of the square - The total area of the cookies

= 144 - 113.04 = 30.96 square inches

The result is the same.

Analyze this situation and determine how much cookie dough is wasted when 3-inch cookies are cut.

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In which of these pairs of numbers is 2 3/5 greater than the first and less than the second? a 2, 2 1/4 b 2.1, 2.3 c 2 1/2, 2 3/4 d 2.7, 3

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