Question

2 5/7p+3 1/2,при p=7

Answer 1

Ответ:

22 1/2  или 22,5

Пошаговое объяснение:

2 5/7p+3 1/2,  p=7

2 5/7×7+3 1/2=19/7×7+7/2=19+7/2=38/2+7/2=45/2=22 1/2 или 22,5

Answer 2

To evaluate the expression 2(5/7)p + 3(1/2) when p is equal to 7, we simply substitute the value of p into the expression and then perform the arithmetic operations.

Let's calculate:

2(5/7)p + 3(1/2) when p = 7

Step 1: Substitute p = 7 into the expression:

2(5/7)(7) + 3(1/2)

Step 2: Perform the arithmetic operations:

2 * (5/7) * 7 = 2 * 5 = 10

3 * (1/2) = 3/2 = 1.5

Step 3: Add the results together:

10 + 1.5 = 11.5

So, when p = 7, the expression 2(5/7)p + 3(1/2) equals 11.5.