danielcespedes2005 danielcespedes2005
  • 03-04-2020
  • Mathematics
contestada

A bag contains white marbles and red marbles, 90 in total. The number of white marbles is 6 less than 5 times the number of red marbles. How many white marbles are there?

Respuesta :

laylaggraham
laylaggraham laylaggraham
  • 03-04-2020

Answer:

W = 72

Step by step explanation:

White = W

Red = R

W + R = 90

Write an equation

W = 5R - 6

Substitute

5R - 6 = 90

Add 6 to both sides of the equation

5R = 90

Simplify

90 ÷ 5 = 18

R = 18

90 - 18 = W

W = 72

Hope this was useful to you!

Answer Link

Otras preguntas

Kathy has 1 loaf of bread. She cuts 2/3 of it fir her friend and 1/12 for herself. What fraction of the bread is left?
Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the triangle a = 240 b = 121 c = 302
approximately how many new rice consumers will be added in asia in the next 10 years
would you use the same unit to measure the height of the desk as you used to measure the length of the desktop? Explain
lucie can walk about 3 4/5 miles each hour. about how far can she walk in 2 hours 45 minutes?
Lamar writes several equations trying to better understand potential energy. What conclusion is best supported by Lamar’s work? The elastic potential energy
explain how to find area of a circle given it's diameter
Can someone help me please
WILL GIE BRAINLIEST PLEASE HELP Many countries around the world today are trying to use renewable resources in such a way that the resource will be able to meet
help me please thank you