Question

(5÷(-1,25)+2,8×1/7+1/3= по действиям

Answer 1

Ответ:

-49/15

Пошаговое объяснение:

1)5:(-1.25)=5/1×(-100/125)=-4;

2)2.8×1/7=28/10×1/7=4/10=2/5;

3)2/5+1/3=11/15;

4)-4/1+11/15=-49/15=-3 3/15

Answer 2

Ответ:

Пошаговое объяснение:

1) 5:(-1 25/100)=5:(-1 1/4)=5/(-5/4)=-5*4/5=-4

2)28/10*1/7=28*1/ 10*7=4/10=2/5

3)-4+2/5=-3 3/5

4)-3 3/5+1/3=-3 9/15+5/15=-3 4/15

Answer 3

To solve the expression using the order of operations, we follow these steps:

Step 1: Evaluate the multiplication and division from left to right. Step 2: Evaluate the addition and subtraction from left to right.

Let's solve the expression step by step:

Step 1: 5 ÷ (-1.25) = -4 2.8 × 1/7 = 0.4 1/3 = 0.3333 (approximately)

After evaluating the division and multiplication, the expression becomes:

-4 + 0.4 + 0.3333

Step 2: -4 + 0.4 = -3.6 -3.6 + 0.3333 = -3.2667 (approximately)

So the value of the expression 5 ÷ (-1.25) + 2.8 × 1/7 + 1/3 is approximately -3.2667.