Answer:
Number of tuna sandwiches is 80
Those in white bread = 1/2*80 =40
Those in brown bread = 0.25 *80 =20
Step-by-step explanation:
Given that 1/2 of the tuna sandwiches are on white bread and 25% of the tuna sandwiches sold are on brown bread then let x to represent the number of tuna sandwiches available.Form expressions as;
0.5 x --------number of Tuna sandwiches on white bread
0.25 x-------number of Tuna sandwiches on brown bread
Given that 20 more white bread were sold than the brown bread then the expression for this statement will be;
0.5 x - 0.25 x = 20
0.25 x =20
x= 20/0.25 = 80
Number of tuna sandwiches is 80
Those in white bread = 1/2*80 =40
Those in brown bread = 0.25 *80 =20
