Step-by-step explanation:
Given:
Total students = 52
The number of boys = 6/7 of the number of girls
To do: Here we have to find the number of boys.
Solution:
Let the number of girls be = x
Number of boys = 6/7 × Number of girls = 6x/7
Now,
Total students = 52
x + 6x / 7 = 52
7x + 6x / 7 = 52
13x / 7 = 52
x = 52 × 7 / 13
x = 28
So,
The number of girls = = 28
Number of boys
= 6x / 7
= 6(28) /7 = 168 / 7 = 24
Therefore, the number of boys is 24.
5,424 is what needs to be circled
A. 9. -7 + x = 9
A = 13.
b. -7 + 13 = -7 - 7 + 6.
a. 10. -10 + x = -2
A = 8
b. -10 + 8 = -2
Answer:
x2 + 7x + x2 + 7x + 9 = 3