Question

Larry buys 4 whatits and 15 henways for $119. Joe buys 12 whatits and 7 henways for $167. How much does a henway cost and how much does a whatits cost? ( I need the equation too)

Answer 1

• Henways - $11, whatits - $5

Explanation:

Required equations are:

• 4w + 15h = 119
• 12w + 7h = 167

Solve by elimination, 3 times the first equation minus the second equation:

• 3(4w + 15h) - (12w + 7h) = 3*119 - 167
• 12w + 45h - 12w - 7h = 190
• 38h = 190
• h = 190/38
• h = 5

Find w:

• 4w + 15*5 = 119
• 4w = 119 - 75
• 4w = 44
• w = 11