Question

Решите задачу, составив пропорцию (110-115): 10. Токарь за 5 месяцев выполнил 47,5% годового плана. Работая с той же производительностью, сколько процентов годового плана он вы- полнил за 12 месяцев? A. 120%; B. 114%; C. 100%; D. 118%. 43 Срочно дам 100 баллов

Answer 1

Ответ:

114%

Пошаговое объяснение:

5 мес = 47.5%

12 мес = х%

$x=\frac{12*47.5}{5}$

x=114%

Answer 2

To solve this problem, we can set up a proportion using the given information. Let's denote the percentage of the annual plan completed in 5 months as x, and the percentage of the annual plan completed in 12 months as y.

According to the problem, the proportion is as follows:

(110-115)/10 = x/47.5

To find the value of y, we can set up a new proportion using the same ratio:

(110-115)/10 = y/12

Now let's solve these proportions step by step:

Solving the first proportion:

(110-115)/10 = x/47.5

First, let's simplify the left side of the equation: -5/10 = x/47.5

Next, let's simplify the left side further: -1/2 = x/47.5

To isolate x, we can cross-multiply: -1 * 47.5 = 2 * x -47.5 = 2x

Now, let's solve for x: x = -47.5/2 x = -23.75

Therefore, the percentage of the annual plan completed in 5 months is -23.75%.

Solving the second proportion:

(110-115)/10 = y/12

First, let's simplify the left side of the equation: -5/10 = y/12

Next, let's simplify the left side further: -1/2 = y/12

To isolate y, we can cross-multiply: -1 * 12 = 2 * y -12 = 2y

Now, let's solve for y: y = -12/2 y = -6

Therefore, the percentage of the annual plan completed in 12 months is -6%.

Based on the calculations above, it seems that there might be an error in the given problem. The percentages obtained for both 5 months and 12 months are negative, which is not possible in this context. Please double-check the problem statement or provide any additional information if available.

Please note that the options A, B, C, and D provided in the question are not applicable in this case, as the calculated percentages are negative.