Translate the sentence into an equation. Use x to represent the unknown number. Do not solve.The sum of twice a number and 7 is 23.
A. x + 14 = 23
B. 2x + 7 = 23
C. 14x = 23
D. 2(x + 7) = 23
Answer: B
You might also like to view...
Find the indicated sum. Find the sum of the first 7 terms in the geometric series 
- 
+ 
- . . .
A. - 
B. 
C. - 
D. 
Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = e2x - 2; relative to f(x) = ex
A. Stretched horizontally;
moved down 2 unit(s)
B. Shrunk horizontally;
moved up 2 unit(s)
C. Shrunk horizontally;
moved down 2 unit(s)
D. Stretched horizontally;
moved up 2 unit(s)
Solve the problem by writing and solving a suitable system of equations.A basketball fieldhouse seats 15,000. Courtside seats sell for $10, endzone for $6, and balcony for 
Total revenue for a sell-out is $82,000. If half the courtside and balcony and all endzone seats are sold, the total revenue is $47,000. How many of each type are there?
A. 3200 courtside 1800 endzone 10,000 balcony B. 4000 courtside 3000 endzone 8000 balcony C. 3000 courtside 2000 endzone 10,000 balcony
Use the quadratic formula to solve the quadratic equation.5 - x2 = 8x
A. 4 + 
B. -4 ± 2
C. -4 ± 
D. -1 ± 