28-01-2015
Mathematics

contestada

Ly scored 90% on a test. If he answered 135 questions correctly, how many questions were on the test?

Respuesta :

28-01-2015

[tex]x-\ all\ questions\\\\ 90\%x=135\\\\ 0.9x=135\ \ \ | divide\ by\ 0.9\\\\ x=150\\\\ There\ were\ 150\ questions.[/tex]

Answer Link

Otras preguntas

What is canada's nearest neighbor to the north?

Bob has 1.5 pounds of nails. If there are 80 nails in a pound, how many nails does Bob have?

2. Can you think of another factor that would affect currents near coasts?

1.) How was the native African culture important to and/or protected by Nelson Mandela? 2.) How have political activities shaped South Africa? 3.) What percep

It says (m-4)(-6) and I have no clue how to solve it

Justin is purchasing a $195,000 home with a 30-year mortgage at 5.25%. Because he is not making a down payment, PMI in the amount of $74.50/month is required fo

The Hittites were able to conquer the Sumerians because they

How does atomic number relate to mass number

What does it mean when world war l is referred to as a "total war"?

James Meredith took his case against the University of Mississippi to

ACCESS MORE