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PLS HELP TYY:)) *picture below too!*
A child received 10 building blocks for Christmas. Each block is either 1
inch or 3 inches wide. The child places them next to each other to make a
line 18 inches long. Which system of equations can be used to determine x,
the number of 1-inch-wide blocks in the line, and y, the number of 3-inch-
wide blocks in the line?
x + y = 18
x + 3y = 10
x + y = 10
x + 3y = 18
O
x + y = 10
3x + y = 18
x + y = 18
3x + y = 10
7 points