Mr. davison has 30 students in his class . He has four more girls than boys. How many boys are in Mr. Davision class? can you please check my answer? I got 11 boys . does it sound about right ?
x = number of boys
x + 4 = number of girls
x + x + 4 = 30
2x + 4 = 30
2x = 26
x = 13
x = number of boys = 13
x + 4 = number of girls = 13 + 4 = 17
13 boys + 17 girls = 30
x = number of boys
x + 4 = number of girls
x + x + 4 = 30
2x + 4 = 30
2x = 26
x = 13
x = number of boys = 13
x + 4 = number of girls = 13 + 4 = 17
13 boys + 17 girls = 30
To check your answer, let's break down the information given.
Let's suppose the number of boys in Mr. Davison's class is represented by 'B'. It's stated that there are four more girls than boys, which means the number of girls can be represented by 'B + 4'.
The total number of students in the class is given as 30. So we can add the number of boys and girls: B + (B + 4) = 30.
Now, let's solve this equation to find the value of 'B':
2B + 4 = 30
2B = 30 - 4
2B = 26
B = 26 / 2
B = 13
So, according to the equation, there are 13 boys in Mr. Davison's class, not 11. Hence, your answer of 11 boys is not correct.