Question

The coach of a lacrosse team bought ice cream cones to celebrate a victory. A single-scoop cone was $3 and a double-scoop cone was $5 The coach bought 15 cones and paid $57. A system of equations describing this situation could be written in the form below where s represents the number of single cones andd represents the number of double cones. What is the sum of A, B, C and E?​

Answer 1

Answer:

s=9

d=6

Step-by-step explanation:

s+d=15

3.s+5.d=57

⇒s=9 và  d=6

Answer 2

Answer:

single cone 9, double cone 6

Step-by-step explanation:

Let x be people who took single cone, so 15-x is the ones who took double cone

so,

3x+5(15-x)=57

3x+75-5x=57

2x=18

x=9

single cone = 9

double cone = 15-9 = 6