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kap26 [50]
2 years ago
5

Mary bought a dozen eggs at the shop she used third of dozer for breatest and quarter for breakfast. How many eggs are left?show

all your calculations.
​
Mathematics
1 answer:
sveta [45]2 years ago
4 0

When numbers are grouped in twelves, each group is referred to as a dozen.

<em>There are 5 eggs left</em>

The amount of egg she bought is:

\mathbf{Amount = 1\ dozen}

Third of a dozen for breatest, means:

\mathbf{Breatest = \frac4{12}}

Quarter for breakfast, means:

\mathbf{Breakfast = \frac1{4}}

So, the fraction of eggs left is:

\mathbf{Eggs = Amount - Breatest -Breakfast }

This gives:

\mathbf{Eggs = 1 - \frac{4}{12} - \frac{1}{4}}

Take LCM

\mathbf{Eggs = \frac{12 - 4 - 3}{12}}

\mathbf{Eggs = \frac{5}{12}\ dozen}

<em>1 dozen means 12.</em>

So, we have:

\mathbf{Eggs = \frac{5}{12} \times 12}

\mathbf{Eggs = 5}

Hence, she still has 5 eggs left

Read more about grouping of numbers at:

brainly.com/question/24231730

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KengaRu [80]

let the number of adult tickets be x and the number of children tickets be y

3x + y = 164...equ(1)

2x + 3y = 174....equ(2)

multiplying equation 1 by 3

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subtracting equation 2 from 1

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substituting the value of x into the equation

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8 0
3 years ago
Can someone give me the answers plz:)
Alborosie

Remark

There is no short way to do this problem and no obvious way to get the answer other that to solve each part.  

Solve

A

\dfrac{x + 1.6}{2} =\text{x + 0.1}                    Multiply by 2

x + 1.6 = 2(x + 0.1)                                         Remove the brackets

x + 1.6 = 2x + 0.1*2                                        

x + 1.6 = 2x + 0.2                                          Subtract x from both sides

1.6 = x + 0.2                                                  Subtract 0.2 from both sides  

1.6 - 0.2 = x                        

1.4 = x

Circle A

B

Subtract 2x from both sides.

3x - 2x = 1.4

Circle B

C

Remove the brackets.

4x + 6 = 2x - 6           Add 6 to both sides

4x + 12 = 2x               Subtract 4x from both sides.

12 = -2x                      Divide by - 2

12/-2 = x

x = - 6                         Don't circle C

D

I'm going to be very scant in my solution of this. You can fill in the steps.

3x = 4.2

x = 4.2/3

x = 1.4

Circle D

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