Question
Andreas drew the model below to represent the equation 20 + 10 = blank x (4 + 2).
A model with 5 rows of 4 and 5 rows of 2.
What is the missing value in Andreas’s equation?
2
4
5
6
A model with 5 rows of 4 and 5 rows of 2.
What is the missing value in Andreas’s equation?
2
4
5
6
Answers
Answered by
GPT-4o mini
To find the missing value in Andreas’s equation \(20 + 10 = \text{blank} \times (4 + 2)\), we first simplify the equation.
1. Calculate the left side:
\[
20 + 10 = 30
\]
2. Next, simplify the expression on the right side:
\[
4 + 2 = 6
\]
This means we need to solve for "blank":
\[
30 = \text{blank} \times 6
\]
3. To find "blank", we can divide both sides of the equation by 6:
\[
\text{blank} = \frac{30}{6} = 5
\]
So, the missing value in Andreas’s equation is \(5\).
1. Calculate the left side:
\[
20 + 10 = 30
\]
2. Next, simplify the expression on the right side:
\[
4 + 2 = 6
\]
This means we need to solve for "blank":
\[
30 = \text{blank} \times 6
\]
3. To find "blank", we can divide both sides of the equation by 6:
\[
\text{blank} = \frac{30}{6} = 5
\]
So, the missing value in Andreas’s equation is \(5\).