02-09-2016
Mathematics

contestada

find the digit that makes _ 3520 by 9

Respuesta :

musicotic musicotic

02-09-2016

Remember the divisibility rule for 9. The sum of the digits of the number must be divisible by nine.
Let the digit be [tex] x [/tex]. Then [tex]x+3+5+2+0=x+10[/tex] has to be divisible by nine. Recalling that [tex] 18=9*2 [/tex], we note that [tex] x=8 [/tex].

Answer Link

Otras preguntas

Aaron's rear bicycle tire has too much air he removes 8 pounds of air so that his tire gauge now reads 53 pounds. How many pounds did he begin with? Use the equ

Calculate the average atomic mass for element X

If the fixed cost is 9000 per year. Variable costs are estimated to be Tk. 60.75 / item. The firm wants to break even if 80 items are sold per year. What should

Helps me please in this

Choose the graph of y = -3 sin x.

Express 20% as a decimal number

❊ Simplify : 1. [tex] \large{ \tt{ \frac{a + 2}{ {a}^{2} + a - 2 } + \frac{3}{ {a}^{2} - 1 } \: \: \{ANS : \frac{a + 4}{ {a}^{2} - 1 } \}}}[/tex]2. [tex] \large

Marcel and Floyd are playing games at an arcade. Marcel has $8.25 and is only playing $0.25 games. Floyd has $9.75 and is only playing $0.75 games. Jorge wants

What are the example of molecule ?

A 6 paragraph essay on anything you can do I can do better