5x + 2y = 8 x + y = 4 if you want to solve the system of equations by addition, which of the following could you do? multiply the second equation by 5 and add. multiply the second equation by 2 and add. multiply the second equation by -2 and add.

Which of the following is the correct ratio for converting kilograms to grams

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct

Awoman who is 64 inches with a shoulder width of 16 inches. write an equation relating the height h to the width w. find the height of a woman who has ashoulder width of 18.5 inches