faithwashere faithwashere

26-01-2016
Mathematics

contestada

What is the value of x in the equation 1/5x –2/3 y = 30, when y = 15?
A.4
B. 8
C. 80
D. 200

Respuesta :

Billymkhoi Billymkhoi

26-01-2016

Plug y= 15 in the equation 1/5x -2/3y= 30, we have:
1/5x -2/3* 15= 30
⇒ 1/5x -10= 30
⇒ 1/5x= 30+ 10
⇒ 1/5x= 40
⇒ x= 40/ (1/5)
⇒ x= 40* (5/1)
⇒ x= 200

Final answer: D. 200~

Answer Link

Otras preguntas

Which war during the mid-1800s weakened the economy of the Ottoman Empire? A. Crimean War B. World War I C. Spanish War D. Boer War

Identify the form of the word children’s. singular possessive singular plural plural possessive

A hill is made of rock particles of different sizes. Which of these agents of erosion probably caused the hill to form? A. Glacialice B. Waves C. Wind D. Flowin

The Massachusetts Bay Colony was established in New England by

when you exhale, air in your lungs move from the __

PLS HELP ME. A strip of metal sheet 2cm thick is wound ten times round a cylindrical rod of diameter 9cm and height 8cm such that it fits exactly .calculate the

Need help ASAP :(( pleaseee 1. ____is the body's reaction to a demanding situation 2. The first phase of general adaptation syndrome is called the _____ 3. ___

In a series of experiments, Griffith infected mice with nonvirulent R-strain bacteria and highly virulent S-strain bacteria. Heat-killed S bacteria were nonvi

Select the correct answer from each drop-down menu. Desiree is given an aptitude test with 50 multiple-choice questions. For every correct answer, Desiree will

What is the solution to the system of equations below?2x+3y = 173x+6y= 30