Find two numbers, if their sum is 115 and their difference is 7.

61 and 54

Step-by-step explanation:

Let the 2 numbers be x and y. We can write this system of equations from the given information:

x + y = 115

x - y = 7

Adding these 2 equations gets rid of y (because y+(-y) is 0) and we are left with 2x = 122. Dividing by 2 (so that we can get rid of x's coefficient), we have x = 122 / 2 = 61. When we plug x = 61 into the second equation (you can plug it in to either equation), we have 61 - y = 7, and y = 54. Hope this helps!

answer: the area of the parallelogram below is 42 square meters.

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