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Mathematics

2 answers:

Vera_Pavlovna [14]3 years ago

7 0

5x + 2y = 16 ⇒ 5x + 2y = 16
x + 3y = 12 ⇒ 5x + 15y = 180
 -13y = -164
 -13 -13
 y = 12 8/13
 5x + 2(12 8/13) = 16
 5x + 25 3/13 = 16
 -25 3/13 -25 3/13
 5x = -9 3/13
 5 5
 x = -1 11/13
 (x, y) = (-1 11/13, 12 8/13)
B. (3, 2)

Vedmedyk [2.9K]3 years ago

6 0

C. (2,3) The solution to the system of equations is where the two lines will intersect. looking at the graph that point is closest to C. (2,3)

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3 years ago

Andrew went for a walk in the park. The trail he took is 1 1/4 miles long. He walked for 1/2 mile before stopping for a water br

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Andrew walked for 3/4 miles after his break

<h3>How to calculate the number of miles Andrew walked after the break ? </h3>

Andrew went for a walk

The trail he took is 1 1/4 miles long

He walked for 1/2 miles before stopping for a water break

After the break, he continued the journey

He continued the journey without stopping

The distance Andrew walked after his break can be calculated as follows

5/4 - 1/2

= 5-2/4

= 3/4

Hence Andrew walked for 3/4 miles after taking the break