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

please help!! I'm really stuck on this
3. The population P in thousands of a city can be modeled by the equation P = 80e^0.015t, where t is the time in years. In how many years will the population o
prove that (Cos A +cosB)^2+(SinA+sinB)^2=4cos^2(A-B/2)​
Which sentences contain gerunds? Select all that apply. The arresting officer put the suspect in handcuffs. Ernesto was standing outside in the rain. Thinking i
Write the Plural! Spanish, help!!
The CEO of a business firm wants to increase the productivity of the employees while minimizing the labor costs incurred by the company. He decides to pay a mon
In order to defeat the Soviet Union in front of the world President Kennedy: * A. Invaded Cuba B. Moved troops into East Berlin C. Attacked North Korea D. Expan
Doy 5 estrellas y corazon al que me ayude con esto
Two cities are at a similar latitude, but one is on the ocean and the other is further inland. How does nearness to the ocean impact temperatures in these citie
Silver nitrate is reacted with magnesium bromide and two products are formed. (Ignore selected answer)