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

f(x) = cos(x) f'(x) = -sin(x) f'(π/2) = -sin(π/2) f'(π/2) = -1 My answer to this question is A. -1, but I am posting it here because several students got B. +1
The ratio of oxygen-16 and oxygen-18 isotopes in plankton fossils in deep-sea sediments can be used to determine ________.
Using the equation y=2/3x-5, describe how to create a system of linear equations with an infinite number of solutions.
Are you more likely to get shingles if you had chicken pox
This is a question about inverse/transcendental functions. Can anyone confirm that the answer is D? The question is asking which statement is FALSE, and I'm bou
What would happen if the concentration of H ions were higher inside the mitochondrion than outside the mitochondrion when the channel opened
Which language is the origin of most of the diverse languages spoken and Eastern Europe today A. a single Slavic language B. English C. a Romance language D.
How do you evaluate this equation: a number decreased by the difference of m and 7? Please help and quick!!
Was George h bush a vice president under Ronald reagan
How did Vladimir Putin gain power in Russia in 2000?