2x + y = 8

-x - 3y = - 12

Solve the above system of equations using substitution.

What is the value of (63 + 9) : 32?

Find the minimum value of n that guarantees an error of no more than 1/30,000 in approximating integral 1/x dx from 3 to 4 by the Trapezoidal Rule with n equal subintervals.

the number of students in the tour sixth grade classes at northside school are 26 19 34 and 21 use properties to find the total number of srudents in the four classes

Q+|6.4|=9.6 what does q equal

The area of a rectangle roof on a doghouse is 756 square inches the length of the roof is 108 inches how many inches is the wide roof

Equivalent fractions of 8/13

The box plots represent the ages of pennies in two 50-cent rolls. By looking at the plots, Beth says that the two means are about 5 years apart.

Which is bigger nine halves or nine quarters? How do you know?

In triangle abc, ab=90 in, bc=80 in, and angle b measures 50°. what is the approximate perimeter of the triangle? a) 242.4 in. b) 265.3 in. c) 308.3 in. d) 324.1 in.

The sum of two numbers is 180. one number is 5 times the number