Question

1)5,3•43,7-5,3•3,7= 2)7,2+0,3•(27,4-7,4)= 3)2,25:0,5-1,7= Помогите пожалуйста

Answer 1

1)212
2)6+7,2=13,2
3)4,5-1,7=2,8

Answer 2

Calculation 1: 5.3 * 43.7 - 5.3 * 3.7

To calculate this expression, we can use the order of operations (PEMDAS/BODMAS) and perform the multiplication before subtraction.

Step 1: Multiply 5.3 by 43.7: 5.3 * 43.7 = 231.61

Step 2: Multiply 5.3 by 3.7: 5.3 * 3.7 = 19.61

Step 3: Subtract the result of step 2 from the result of step 1: 231.61 - 19.61 = 212

Therefore, the result of the expression 5.3 * 43.7 - 5.3 * 3.7 is 212.

Calculation 2: 7.2 + 0.3 * (27.4 - 7.4)

Again, we will use the order of operations to calculate this expression.

Step 1: Subtract 7.4 from 27.4: 27.4 - 7.4 = 20

Step 2: Multiply 0.3 by the result of step 1: 0.3 * 20 = 6

Step 3: Add the result of step 2 to 7.2: 7.2 + 6 = 13.2

Therefore, the result of the expression 7.2 + 0.3 * (27.4 - 7.4) is 13.2.

Calculation 3: 2.25 / 0.5 - 1.7

To calculate this expression, we will perform the division first and then the subtraction.

Step 1: Divide 2.25 by 0.5: 2.25 / 0.5 = 4.5

Step 2: Subtract 1.7 from the result of step 1: 4.5 - 1.7 = 2.8

Therefore, the result of the expression 2.25 / 0.5 - 1.7 is 2.8.

If you have any further questions, feel free to ask!