daisyguzman daisyguzman

09-02-2015
Mathematics

contestada

ben raised 43.50 by selling 12 rolls of solid paper and 9 rolls of printed paper. joel raised 51.50 by selling 8 rolls of solid paper and 15 rolls of printed parper. find the cost of each type of wrapping paper.

Respuesta :

fernandk fernandk

09-02-2015

Set up two equations
43.5 = 12x + 9y
51.5 = 8x + 15y
Solve
x = 1.75
y = 2.5

Answer Link

Otras preguntas

How many moles are there in 47050.6 cg of ammonium tripolyphosphate

What is the major aggregate planning difference between service and manufacturing firms? A. Service firms cannot hold inventory of their product B. Demand for s

Discuss the dimensions of quality of the pens that you use every day. What are the costs of internal and external failures?

11 TIME REMAININ 02:49:07 A nurse is discussing a condition with a patient. The nurse is careful to give the patient enough time to process each treatment optio

Inventa 5 preguntas sobre el libro Que Es y Que No Es la Evolución: El Circulo de Darwin EJ: ¿Cómo Charles Darwin menciona los cambios en las especies?

Let and be real numbers such that the equation x² - 2x + 15 = 0 has a repeated root . If and are the roots of the equation x² - 2x + 21 = 0, what is the val

Sydney's home was destroyed in a hurricane. It is hard to find food, so she is constantly hungry. However, she feels lucky because her family survived and she i

insulator that provides great resistance to the flow of electricity is called a

An athlete completes one round of a circular track of radius R in 40 sec . What will be his displacement at the end of 2 minutes 20seconds?

An AC source is rated 220V,50 Hz. The average voltage, is calculated in a time interval of 0.01 s. ItA. must be zerois B. (220/√2)VC. is never zeroD. may be zer

Q&A Platform for Education Platform Explore for Education