danetteshyiene danetteshyiene

16-01-2015
Mathematics

contestada

Five times Carl's age plus three times Jill's age equals 110. Jill's age is also two times Carl's age. How old is Carla ?

Respuesta :

16-01-2015

x - Carl's age
y - Jill's age

[tex]5x+3y=110 \\ y=2x \ \ \ |\times (-3) \\ \\ 5x+3y=110 \\ \underline{-3y=-6x} \\ 5x+3y-3y=110-6x \\ 5x=110-6x \\ 5x+6x=110 \\ 11x=110 \\ x=10[/tex]

Carl is 10 years old.

Answer Link

Otras preguntas

a 10 inch candle burns at a rate of 2 inches per hour. Draw a graph to model this situation. How long will the candle last ?

What is the simplier form of the radical expression 3sqer125x^21?

A restaurant bill is $44.89. Estimate what a 20% tip would be.

Answer the question on the bottom. Help

The figures below are made out of circles, semicircles, quarter circles, and a square. Find the area and the perimeter of each figure and give your answers as a

examples of how samurai would endure pain and suffering

Which are the answers?

List three things that the British did that made the Colonists angry?

In a survey the US bureau of labor statics found the Americans watch an adventure of 2.7 hours of television per day which best describes how television has c

The area of a rectangular wall of a barn is 320320 square feet. its length is 1212 feet longer than twice its width. find the length and width of the wall of th