cost

If you have 65$, how many pots can you buy, the pots are 3x + 10 Set 3x + 10 = 65 and solve for x: 3x + 10 = 65 Plugging this into our equation calculator, we get: x = 18.33

A class of n students was raising money for a field trip. They have earned $800 so far. Each student plans to work x more hours at a wage of y dollars per hour. When they are done, how much money will they have earned? Class of n students * x more hours worked * y dollars per hour = xyn Total...

If cement cost $4 per cubic foot, how much does a cubic yard of cement cost? There are 3 feet in a yard 3 x 3 x 3 = 27 cubic feet in a yard Total cost = 27 cubic feet * $4 per cubic foot = $108

The price of a cheap backpack is $15 less than an expensive backpack. When Emily bought both, she paid $75. What is the cost of the cheap backpack? backpack cost = b Cheap backpack = b - 15 The total of both items equals 75: b + b - 15 = 75 Solve for b in the equation b + b - 15 = 75 Step 1...

A garden has a length that is three times its width. If the width is n feet and fencing cost $8 per foot, what is the cost of the fencing for the garden? Garden is a rectangle which has Perimeter P of: P = 2l + 2w l = 3w P = 2(3w) + 2w P = 6w + 2w P = 8w Width w = n, so we have: P = 8n Cost =...

The regular cost of a guitar is n. On Saturdays, all guitars are 15% off. What is the price of the guitar on Saturday? 15% = 0.15 If we take that price off, we have: 1 - 0.15 = 0.85 So the cost is 0.85n

Keith is cutting two circular table tops out of a piece of plywood. the plywood is 4 feet by 8 feet and each table top has a diameter of 4 feet. If the price of a piece of plywood is $40, what is the value of the plywood that is wasted after the table tops are cut? Area of the plywood = 4 * 8 =...

If the cost of each hat is x dollars, what is the cost of y hats? Cost = Price per unit * Quantity Cost = xy dollars or $xy

If the price of cheese is $2.35 per pound, what is the cost of 2.45 pounds of cheese? Since Cost = Price * Quantity, we have: $2.35 per pound * 2.45 pounds = $5.76

The baseball coach bought 2 new baseballs for $1 each. The basketball coach bought 7 new basketballs for $10 each. How much more did the basketball coach spend than the baseball coach? Baseball coach spend: Spend = Number of baseballs * cost per baseball Spend= 2 * $1 Spend = $2 Basketball...

A school spent $150 on advertising for a breakfast fundraiser. Each plate of food was sold for $8.00 but cost the school $2.00 to prepare. After all expenses were paid, the school raised $2,400 at the fundraiser. Which equation can be used to find x, the number of plates that were sold? Set up...

a bicycle store costs $3600 per month to operate. The store pays an average of $60 per bike. the average selling price of each bicycle is $100. how many bicycles must the store sell each month to break even? Cost function C(b) where b is the number of bikes: C(b) = Variable Cost + Fixed Cost...

the cost of 12 notebooks at x pesos each Cost = quantity * price Cost = 12x

Your profit for mowing lawns this week is $24. You are paid $8 per hour and you paid $40 for gas for the lawn mower. How many hours did you work this week? We know profit from the equation below: Revenue - Cost = Profit We're given Profit as 42, so we have: Revenue - Cost = 42 Let hours...

if you buy 50 bales of hay at $3.56 each, and then buy an additional 234 bales at $3.33 each, how much do you pay for the entire lot of 284 bales? Since cost = price * quantity, we have: Total lot cost = price(1) of hay * bales(1) of hay + price(2) of hay * bales(2) of hay Total lot cost = 3.56...

A soda cost $100. What is the cost of y sodas? Total cost = price * quantity Total Cost = 100y

She bought 120 sodas for $1.25 each, 30 pizzas for $12.50 each and 120 packs of skittles for $2 each. Total Cost = Soda Cost + Pizza Cost + Skittle Cost Cost = Quantity * Price, so we have: Total Cost = 120 * 1.25 + 20 * 12.50 + 120 * 2 Total Cost = 150 + 250 + 240 Total Cost = $640

A shopkeeper buys a box of 20 cans of cola for $10. He sells the cans for 65 cents each. Work out his percentage profit. Calculate Revenue Revenue = Sale price per can * number of cans Revenue = 0.65 * 20 Revenue = 13 Calculate Profit given a cost of $10: Profit = Revenue - Cost Profit = 13 -...

Julia spends $1.75 on gas for her lawn mower. She earns $16.00 mowing her neighbor's yard. What is Julia's profit? Profit = Revenue - Cost Profit = 16.00 - 1.75 Profit = $14.25

Rachel buys some scarves that cost $10 each and 2 purses that cost $16 each. The cost of Rachel's total purchase is $62. What equation can be used to find n, the number of scarves that Rebecca buys Scarves Cost + Purses Cost = Total Cost Calculate Scarves Cost Scarves cost = Cost per scarf *...