Question

С 179. Вычислите значение числового выражения. a) 30*15 - 3*15 + 27*5 = b) 56 13 - 56 7+ 4- 6 = c) 24.67 +53 * 24 - 50 - 24 = d) 214*77 + 86 84 - 86 * 7 = e) 9*8* 7-8*7*6+7*6*5-6*5*4 +5*4*3-4*32 =? помогите пожолуйстасейчас​

Answer 1

Ответ: чтоб решить правильно проверь b) там точно 567? или 56.7 а также с) и d) запятые все на месте

Пошаговое объяснение:

Answer 2

Calculation of Numerical Expressions

Let's calculate the values of the given numerical expressions:

a) 30 * 15 - 3 * 15 + 27 * 5 =

To calculate this expression, we need to follow the order of operations (PEMDAS/BODMAS). First, we perform the multiplication and then the subtraction and addition.

30 * 15 = 450

3 * 15 = 45

27 * 5 = 135

Now, substituting these values back into the expression:

450 - 45 + 135 = 540

So, the value of the expression is 540.

b) 56 + 13 - 56 + 7 + 4 - 6 =

Following the order of operations:

56 + 13 = 69

56 + 7 = 63

63 + 4 = 67

67 - 6 = 61

So, the value of the expression is 61.

c) 24.67 + 53 * 24 - 50 - 24 =

Following the order of operations:

53 * 24 = 1272

24.67 + 1272 = 1296.67

1296.67 - 50 = 1246.67

1246.67 - 24 = 1222.67

So, the value of the expression is 1222.67.

d) 214 * 77 + 86 * 84 - 86 * 7 =

Following the order of operations:

214 * 77 = 16478

86 * 84 = 7224

86 * 7 = 602

Now, substituting these values back into the expression:

16478 + 7224 - 602 = 23456

So, the value of the expression is 23456.

e) 9 * 8 * 7 - 8 * 7 * 6 + 7 * 6 * 5 - 6 * 5 * 4 + 5 * 4 * 3 - 4 * 32 =

Following the order of operations:

9 * 8 * 7 = 504

8 * 7 * 6 = 336

7 * 6 * 5 = 210

6 * 5 * 4 = 120

5 * 4 * 3 = 60

4 * 32 = 128

Now, substituting these values back into the expression:

504 - 336 + 210 - 120 + 60 - 128 = 190

So, the value of the expression is 190.

I hope this helps! Let me know if you have any further questions.