tentukanlah nilai x dan y dari persamaan x+y=13 dan 2x-7y=-1​

The answer is 120. 42/0.35 = 120

Answered by nguyenruss | 2024-06-10

Let
x--------> the number
we know that
35 % is equal to
100 35 ​ = 0.35
x ∗ 0.35 = 42
divide by 0.35 both sides
x ∗ 0.35 0.35 ​ = 0.35 42 ​ x = 0.35 42 ​ x = 120
therefore
the answer is
** 120 **

Answered by calculista | 2024-06-11

To find the number for which 42 is 35%, we set up the equation 0.35x = 42. Solving for x gives us x = 120. Therefore, 35% of 120 is 42.
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Answered by calculista | 2024-12-26

Jawab:x + y = 13 persamaan 12x-7y = -1 persamaan 2x + y = 13 x = 13 - y persamaan 32x-7y = -12(13 - y) - 7y = -126 - 2y - 7y = - 1- 2y - 7y = - 1 - 26- 9y = -27y = -27/-9y = 32x -7y = -12x - 7(3) = -12x - 21 = -12x = -1 + 212x = 20x = 20/2x = 10Jadi x = 10 dan y = 3

Answered by agungkrishna79 | 2025-07-16