Choose what the expressions below best represent within the context of the word problem. The tens digit of a number is twice the ones digit. The sum of the digits in the number is 12. What is the number?

how many significant figures does this number contain 0.0072

Use algebra, What number exceeds y by 4 less than x?

Consider the equations y = |x - 1| and y = 3x + 2. The approximate solution of this system of equations is?

How many 3/4 are there in 5 1/4

Calculate the percent error if the experimental value of the density of copper is 21.2 g/cm3 and the accepted value is 22.1 g/cm3.

At 7:30 a. m., a bus left Town P for Town Q at a speed of 60 kilometers per hour. 15 minutes later, a car left Town Q and headed for Town P. The car reached Town P at 10:45 a. m. The bus reached Town Q at noon.

The fundamental theorem of Arithmetic The system (E) : The set of all even positive integers The system (T) : all positive integers congruent to 1 mod 3 1. List the primes in E between 1 and 20. 2. List the primes in E between 21 and 40. 3.

Suppose you are getting new inground pool at your house. The pool is going to be a rectangle that is 30 feet by 15 feet. The outside border of the deck around the pool will also be a rectangle, which is 44 feet by 28 feet.

There are 12 team members. They each ate 3 slices of pizza. Each pizza was cut into 8 slices. What fraction of the pizza did the team eat altogether?

Solve for v 12v = 18+6v