GMAT Quantitative Reasoning › DSQ: Solving linear equations with two unknowns
How many solutions does this system of equations have: one, none, or infinitely many?
Statement 1:
Statement 2:
A toy store sells dolls for dollars each and trucks for
dollars each. How many dolls did the store sell last week?
(1) Last week, the store sold twice as many trucks as dolls.
(2) Last week, the store made ,
dollars from selling trucks and dolls.
Is the equation linear?
Statement 1:
Statement 2: is a constant
Data Sufficiency Question
Solve for ,
, and
:
1.
2.
Data Sufficiency Question
Solve for and
:
1.
2.
Data Sufficiency Question
Solve for and
.
1.
2. Both and
are positive integers
Given that both , how many solutions does this system of equations have: one, none, or infinitely many?
Statement 1:
Statement 2:
Solve the following for x:
4x+7y = 169
1. x > y
2. x - y = 12
Data sufficiency question- do not actually solve the question
Solve for :
1.
2.
What is the value of z?
Statement 1:
Statement 2: