a washer and a dryer cost $970 combined . the washer costs $70 more than the dryer . what is the cost of the dryer ?
2 answers:
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Answer:
C
Step-by-step explanation:
Given:
Changing the division to multiplication by taking the reciprocal of the second fraction.
<u>The correct option is C</u>
Answer:
(x, y, z) = (-4, 2, 1)
Step-by-step explanation:
See the attachment for the output of a calculator that produces the reduced row-echelon form of the matrix.
The [x, y, z] result vector is the column on the right.
(x, y, z) = (-4, 2, 1)
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Numerous web sites are available for computing the row-reduced form of the matrix, or for solving the system of equations. Your graphing calculator will do it as well.
