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

Assume the following sales data for a company: Year 2 $684,000 Year 1 $600,000 What is the percentage increase in sales from Year 1 to Year 2 (to the nearest
At one time, biologists thought that fungi were merely forms of plants that had lost their chlorophyll and had returned to decomposing dead nutrients to gain fo
Converges and diverged part 4​
Which equation represents a line that passes through the two points in the table?
Is the cost of a bunch of grapes compared with its weight an example of a constant rate of change?
can someone help me with this social studies. Tell me what clues shows growth of mid sized cities in the late 19th century and over the 20th century​
Write as an equation: Kate spent $1 more than Lauren, and together they spent $5
¿Les dan gafas de sol los vendedores a los turistas?
weights of cars passing over Bridge part 3​
¿Te compra botas en el invierno tu mamá?