8. The table shows the number of children in two groups. x
Green group
Yellow group
Total
Boys
Х
2
2x
Girls
y
Z
children? Express the
Total
13
adults, 3 children and
s of x, y and z.
Irs. Brown have to
ens?
(a) Complete the table.
(b) Given that there are 6 girls in green group, write an algebraic
equation in terms of x. Use the equation to find the number of
boys in the yellow group.
(c) Write an expression to show the difference between the total
number of boys and the total number of girls.