Animaljamdesires2121 Animaljamdesires2121
  • 02-04-2020
  • Mathematics
contestada

A store has sold 90 notebooks, which is 20% of all the
notebooks they had. How many notebooks did the store
have at first?

A) 450
B) 23
C) 108
D) 500

Respuesta :

lycheeboba
lycheeboba lycheeboba
  • 02-04-2020
Answer: 450
Explanation: 20%=20/100=1/5
Multiply 90 by the reciprocal of 1/5 which is 5
90 x 5 =450
Answer Link

Otras preguntas

The chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this conc
You put $500 in an interest bearing bank account that pays 2% per year but has a fee of $2 per month. are you getting ahead?
Alessandro and Francesca raced each other home fro, school it took Francesca 13/15 as long as Alessandro to run home who got home first
Which nation was led by dictator stalin?
Find the value of y for the given value of x. y=1-2x;x=9 y=
How does the surface tension of water compared with the surface tension of most other liquids?
The length of JK¯¯¯¯¯ is 12 units. What is the length of the image of the line segment after a dilation with a scale factor of 2/5? Please help fast
How do you say me too in Spanish
y=5/6x+1 -x+y=2 could anyone help me with this??
Which Roman Emperor is known for his efforts to protect and secure the boundaries of the Empire?