Writing an inequality

[joannamartinez]

I need help please. I need to write an inequality and explain the answer. If I need 30 tons of rock to cover an area and each ton costs $60.00 and each tree is $84.00, what is the maximum number of trees I can buy with $2500.00? Would 5 trees be a solution to the inequality? Please advise how I would write this. Thank you.

 

[wjm11]

I need to write an inequality and explain the answer. If I need 30 tons of rock to cover an area and each ton costs $60.00 and each tree is $84.00, what is the maximum number of trees I can buy with $2500.00? Would 5 trees be a solution to the inequality? Please advise how I would write this.

Answer: The cost of the rock plus the cost of the trees is less than or equal to $2500. Can you write that as a math inequality?

Hint:

Cost of rock: (30T)($60/T) = $1800

Cost of trees: ($84/tree)(n), where n is the number of trees.

 

[joannamartinez]

Thank you very much. I really appreciate your help.

 

[Deleted member 4993]

I need to write an inequality and explain the answer. If I need 30 tons of rock to cover an area and each ton costs $60.00 and each tree is $84.00, what is the maximum number of trees I can buy with $2500.00? Would 5 trees be a solution to the inequality? Please advise how I would write this.

Answer: The cost of the rock plus the cost of the trees is less than or equal to $2500. Can you write that as a math inequality?

Hint:

Cost of rock: (30T)($60/T) = $1800

Cost of trees: ($84/tree)(n), where n is the number of trees.

Continuing with Bill's advice:

\(\displaystyle 1800 + 84\cdot n \ \ \le \ \ 2500\)

\(\displaystyle 84\cdot n \ \ \le \ \ 700\)

\(\displaystyle n \ \ \le \ \ \frac{700}{84}\)

\(\displaystyle n \ \ \le \ \ \ 8\)

 

[Denis]

\(\displaystyle n \ \ \le \ \ \frac{700}{84}\)

n <= |700/84| or n <= INT(700/84)

Go stand in the corner, minimun 15 minutes :shock: