The model shown can be used to find the product [tex]7 \times 4[/tex].

[tex]\[ \begin{array}{l}
(5+2) \times 7=(5 \times 7)+(2 \times 7) \\
(4+7) \times 4=(4 \times 4)+(7 \times 4) \\
(5+2) \times 4=(5 \times 4)+(2 \times 4) \\
(2+7) \times 5=(2 \times 5)+(7 \times 5)
\end{array} \][/tex]

Which expression is correct to find the product [tex]7 \times 4[/tex]?

A. [tex]\((5+2) \times 7 = (5 \times 7) + (2 \times 7)\)[/tex]
B. [tex]\((4+7) \times 4 = (4 \times 4) + (7 \times 4)\)[/tex]
C. [tex]\((5+2) \times 4 = (5 \times 4) + (2 \times 4)\)[/tex]
D. [tex]\((2+7) \times 5 = (2 \times 5) + (7 \times 5)\)[/tex]



Answer :

To find [tex]\[\begin{array}{l}(5+2) \times 7 = (5 \times 7)+(2 \times 7)\end{array}\][/tex], let's go through the steps in detail:

1. Break down the expression:
[tex]\[ (5+2) \times 7 \][/tex]

2. Distribute the multiplication:
[tex]\[ 5 \times 7 + 2 \times 7 \][/tex]

3. Calculate each part separately:
[tex]\[ 5 \times 7 = 35 \][/tex]
[tex]\[ 2 \times 7 = 14 \][/tex]

4. Add the results of each multiplication:
[tex]\[ 35 + 14 = 49 \][/tex]

Thus, [tex]\[(5+2) \times 7 = 49\][/tex].

Now, let's follow the same logic for the following expressions:

### For [tex]\[ (4+7) \times 4 = (4 \times 4)+(7 \times 4): \][/tex]

1. Break down the expression:
[tex]\[ (4+7) \times 4 \][/tex]

2. Distribute the multiplication:
[tex]\[ 4 \times 4 + 7 \times 4 \][/tex]

3. Calculate each part separately:
[tex]\[ 4 \times 4 = 16 \][/tex]
[tex]\[ 7 \times 4 = 28 \][/tex]

4. Add the results of each multiplication:
[tex]\[ 16 + 28 = 44 \][/tex]

### For [tex]\[ (5+2) \times 4 = (5 \times 4)+(2 \times 4): \][/tex]

1. Break down the expression:
[tex]\[ (5+2) \times 4 \][/tex]

2. Distribute the multiplication:
[tex]\[ 5 \times 4 + 2 \times 4 \][/tex]

3. Calculate each part separately:
[tex]\[ 5 \times 4 = 20 \][/tex]
[tex]\[ 2 \times 4 = 8 \][/tex]

4. Add the results of each multiplication:
[tex]\[ 20 + 8 = 28 \][/tex]

### For [tex]\[ (2+7) \times 5 = (2 \times 5)+(7 \times 5): \][/tex]

1. Break down the expression:
[tex]\[ (2+7) \times 5 \][/tex]

2. Distribute the multiplication:
[tex]\[ 2 \times 5 + 7 \times 5 \][/tex]

3. Calculate each part separately:
[tex]\[ 2 \times 5 = 10 \][/tex]
[tex]\[ 7 \times 5 = 35 \][/tex]

4. Add the results of each multiplication:
[tex]\[ 10 + 35 = 45 \][/tex]

Thus, we get the following results using the distributive property:

- [tex]\((5+2) \times 7 = 49\)[/tex]
- [tex]\((4+7) \times 4 = 44\)[/tex]
- [tex]\((5+2) \times 4 = 28\)[/tex]
- [tex]\((2+7) \times 5 = 45\)[/tex]

These are the detailed steps to obtain the product using the distributive property for each given expression.