april1955 april1955
  • 18-07-2018
  • Mathematics
contestada

Derek's score on a test was 90 percent. He had 72 questions right. How many problems were on the test?

Respuesta :

Аноним Аноним
  • 18-07-2018

90% = 72 questions


\\Find 1%

1 % = 72 ÷ 90 = 0.8


\\Find 100%

100% = 0.8 x 100 = 80 questions


Answer: There were 80 questions

Answer Link

Otras preguntas

How are the four kingdoms within Eukarya different?
you guys im not sure which one help me
Determine the value of the following investment 12 years from now. You are investing $300/month and have a fixed interest rate of 5% per year compounded monthly
il,SUCESOR566789100​
If the radius of a clock face is 4.5 inches, what is the diameter? *
Solve for x. Please help!!!
why is the same side of the moon always visible to earth
el aumento en la producción de bióxido de carbono provoca el___ de la atmósfera​
Volume of of 7cm 4cm 5cm
Elias swam 1,170 laps in the pool last week. If he spent a total of 6 hours swimming laps, how many laps per minute did he average?