Answer the question.2x - 7y = -175x + 3y = 19If your friend was going to solve this system of equations by first eliminating y, what general suggestions would you make so your friend could start on this in a systematic way?

What will be an ideal response?


Answers may vary. One possibility: Multiply the first equation by 3, multiply the second equation by 7, and add the two resulting equations together. Solve the resulting equation for x. Substitute the solution for x into one of the original equations and solve for y. Finally, check your overall solution by substituting both values into the other original equation.

Mathematics

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Multiply.( - 3)( + 3)

A. x + 3 - 3 - 9
B. x +  - 9
C. x - 9
D. x - 9

Mathematics

Simplify the complex fraction.

A.
B.
C.
D.

Mathematics

?PAT ? ?MNR. List the six pairs of congruent parts for the two triangles.

What will be an ideal response?

Mathematics

Find the indicated premium. Round to the nearest cent.  Find the total premium paid over 25 years for a whole life policy with a face value of $65,000. Assume the policy is taken out by a 25-year-old woman.

A. $6613.75 B. $8303.75 C. $8222.50 D. $5655.00

Mathematics