Yesterday Joe was out running errands. He stopped at the grocery store and picked up 3 pounds of almonds and 2 pounds of walnuts for $28. Last week he
bought one pound almonds and 3 pounds walnuts for $19.25. If Joe needs two
more pounds, how much will he have to spend? (Hint: solve the system first then
answer the question about the third purchase.

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

the answer is su.k.my? ? co.kc