Felipe's coffee shop makes a blend that is a mixture of two types of coffee. type a costs felipe $4.55 per lb. type b costs $5.70 per lb. this month, felipe made 147 lbs of the blend for a total of $726.50. how many lbs of type a coffee did he us?

Lian is deciding which of two gyms to join. each gym charges a monthly rate plus a one-time membership fee. lian correctly wrote and solved a system of linear equations by substitution to compare the costs of the memberships. in her work, she substituted an expression for one variable and solved for the other. this resulted in the equation 75 = 75. what can lian conclude? one gym charges $75 per month. each gym charges $75 per month both gyms charge the same monthly rate and the same membership fee. both gyms charge the same monthly rate, but not the same membership fee.