Solve the problem by writing an inequality.

A club decides to sell T-shirts for $15 as a fundraiser. It costs $20 plus $9 per T-shirt to make the T-shirts. Write and solve an equation to find how many T-shirts the club needs to make and sell in order to profit at least $150.
15x – (9x + 20) ≥ 150; x ≥ 28.33
15x – 9x + 20 ≥ 150; x ≥ 20
(8x + 20) – 15x ≥ 150; x ≥ 20
15x – 9(x + 20) ≥ 150; x ≥ 20

Question

Solve the problem by writing an inequality. 

A club decides to sell T-shirts for $15 as a fundraiser. It costs $20 plus $9 per T-shirt to make the T-shirts. Write and solve an equation to find how many T-shirts the club needs to make and sell in order to profit at least $150.
15x – (9x + 20) ≥ 150; x ≥ 28.33
15x – 9x + 20 ≥ 150; x ≥ 20
(8x + 20) – 15x ≥ 150; x ≥ 20
15x – 9(x + 20) ≥ 150; x ≥ 20

anonymous · Answer

ok,let x be the number of t-shirts to sell
so total selling price (SP) = 15x
now lets calculate cost price (CP)
it costs 20+9 per tshirt--->20+9x
profit = SP-CP and atleast means >= 150
so final inequality is 15x-(20+9x)>=150

anonymous · Answer

A