Ask a New Question

Question

The total cost of a model plane and a model boat is $9. The total cost of 3 model planes and 2 model boats is $22. What is the cost of a model plane? What is the cost of a model boat?
4 years ago

Answers

Anonymous
p + b = 9 ... so .... b = 9 - p
3 p + 2 b = 22

3 p + 2(9-p) = 22
p + 18 = 22
p = 4
b = 9-4 = 5
4 years ago

Related Questions

Total cost and total variable cost are parallel, yet average total cost and average variable cost ar... A 20.0-kg model plane flies horizontally at a constant speed of 12.2 m/s. (a) Calculate its kinetic... The formula Total cost=Cost + Shipping cost + Maintenance is used to find the total cost of a busine... A model plane is 1/48 the size of the actual plane.if the model plane is 28 inches long how long it'... A model plane flies 18 ft per 2 seconds. What is the planes speed in miles per hour? Round to the ne... A boy is twirling a model plane on a string that is 2 meters long. If he twirls the plane at 0.4 rev... The total distance the plane flies from Chicago to New York City is 792 miles. The flight is 2 hours... A coordinate plane for cost versus distance. Based on the scatterplot, connect the shape of the sca... A coordinate plane for cost versus distance. Based on the scatterplot, connect the shape of the sca... Find the total cost: The cost of a microwave oven was $129. The sales tax rate is 7.5% of the purcha...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use