rosegold3806 rosegold3806
  • 02-11-2017
  • Mathematics
contestada

A teacher has 100 pencils in a cup. 16 are more sharp than dull. How many are dull and how many are sharp?

Respuesta :

jmja59oyri47 jmja59oyri47
  • 02-11-2017
x = dull pencils 
y = sharp pencils
x + y = 100
y = x + 16 ~~Plug this back into your original x+y equation.
x+x+16=100 ==> 2x = 84 ==> x = 42. Plug this back into the y = equation
 y = 42 + 16 ==> y = 58.

42 Dull, 58 sharp.
Answer Link

Otras preguntas

How many languages are spoken in the world?
Which of the following questions would be part of a physical activity readiness questionnaire? A. Do you lose your balance because of alcohol consumption? B.
How do you solve X for this
The actions of Al Qaeda have had the BIGGEST impact on which of these?
how do you choose the type of graph to use? like line graph or bar graph
Ms.Sack owns a grocerystore. She buys 272 pounds of potatoes for $99. She wants to sell them for twice as much. She makes 9 bags containing 10 pounds each and
-What are the two factions that make up the Islamic religion and What is a main difference between these?
I'm confused how do I simplify that??
Show me work and answer for 1241 divided by 43
Help. 56 points. What is the verb phrase in the sentence? Will you play checkers with me? A. Will play B. play checkers C. with me D. Will you pla