SylviaHines
SylviaHines SylviaHines
  • 06-09-2015
  • Mathematics
contestada

A a pencil and a ruler cost a dollar fifty together the ruler cost a dollar more than the pencil how much does a pencil cost

Respuesta :

Greeru
Greeru Greeru
  • 06-09-2015
Use the following variables:
P = pencil
R = ruler

P + R = 1.50

R = P + 1.00

Plug in the Equations:

P + (P + 1.00) = 1.50

2P + 1.00 = 1.50

2P = 0.50

P = 0.25

R = 1.50 - 0.25

So the pencil costs $0.25 and the ruler costs $1.25
Answer Link

Otras preguntas

round 300 million 800050 to the nearest hundred thousand
simplify the expression 3a+4+b+2a+5+b
jehhehhrhruhfhfhfufuuuuguufuufgjvjjcjfmfkkfjfjcjfjfjgju
modern humans belong to the group of hominids known as?
What region was almost affected by the big stick policy
Which of the following is true about a solute? A. It forms a suspension B. It dissolves a solvent C. It can't dissolve D. It is dissolved by a solvent
The articles of confederation established a strong central government to respond to issues of economic and national crisis. True or False
which of the following settlers focused on converting native american communities to catholicism
simplify this expression 1/3(21m 27) a. 7m 27 b. 7m 9 c. 63m 9 d. 7m 81
Which of these adjectives best defines an interlude? spiritual instructive witty bawdy somber