Waste less time on Facebook — follow Brilliant.
×

SAT Topic Tests

Algebra And Functions - Basic

         

If \(x\) is a non-zero number such that

\[ \frac{ 10}{y} = \frac{ 10+x} { y + x }, \]

what is the value of \(y\)?

A) 10
B) 5
C) 0
D) -5
E) -10

\[ \frac{ 1}{4}y + 12 = 0 \]

What value of \( y \) satisfies the above equation?

A) \(-48\)
B) \( - 12 \)
C) \( - 4 \)
D) \(12\)
E) \( 48 \)

Economists are tracking the price of a burger at a fast food chain. In 1990, the price was $5.00. It has gone up by $0.10 ever year. If this continues, in what year will the price of the burger be $8.50?

The dollar cost of producing \(n\) tractors in a month is given by

\[ C(n) = 1000 + 200n + 30 n^2. \]

What would be the dollar cost of producing \(10 \) tractors in a month?

A) \( 230 \)
B) \( 1230 \)
C) \( 3300 \)
D) \( 6000 \)
E) \( 321000 \)

A company's profit \(P(x)\), in dollars, for producing \(x\) cameras in one day is given by

\[ P(x) = 300 x - 20 x^2. \]

If the company produces 10 cameras in one day, what would be their profit for that day?

A) \( $ 10,000 \)
B) \( $6, 000 \)
C) \( $3, 000 \)
D) \( $ 2, 000 \)
E) \( $ 1, 000 \)

×

Problem Loading...

Note Loading...

Set Loading...