Mathematics, 29.06.2019 12:20, gonzmari457
Summary of methods to solve systems method equal values this method is most efficient when both equations in form example substitution -2x + one variable is alone on one side of one equation equations in standard form with opposite coeficients. x + 2y = 21 36 27 elimination: add to eliminate one variable. elimination: multiply one equation to eliminate one variable elimination: multiply both equations to eliminate one variable. equations in standard form. to eliminate multiplied to create opposite terms one equation can be 3.6+2y7 when nothing else works. in this case you could multiply the first equation by 3 and the second equation by-2. then add to eliminate the opposite terms. 3x + 2y = 7 problems 1 2x + y = 6 -2x + y = 2 2 -3x+ y0 -6x + 5y = -10 3. 2x - 3y = -9 x -2 4 y-x=4 2y+x=8 5. 2x - y = 4 6. 4x - 4y=14 2x - 4y - 8 7. 6x β 2y = -16 4.x+y=1 8. 6x - y = 4 6x + 3y = -16 9. 2x - 2y = 5 2x - 3y = 3
Answers: 3
Mathematics, 21.06.2019 17:00, daeshawnc14
Jamie went to home depot. she bought 25 bags of soil that cost $9 per bag. she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each. she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jamie pay at the end?
Answers: 1
Mathematics, 21.06.2019 20:30, jtorres0520
Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?
Answers: 2
Mathematics, 21.06.2019 21:00, kmassarotti
Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w
Answers: 1
Summary of methods to solve systems method equal values this method is most efficient when both equa...
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