Question

№68.Вычислить, используя свойства деления : 1)14145:5 2)16128:4 №69.Упростить выражение : 1)(9m-18):9 2)(125a+75):5 3)(27+189x):3

Answer 1

1)14145/5=2829
2)16128/4=4032
1)(9м-18)/9=9м/9-18/9=м-2
2) (125а+75)/5=125а/5+75/5=25а+15
3)(27+189х)/3=27/3+189х/3=9+63х

Answer 2

1)14145/5=2829
2)16128/4=4032
 1)(9м-18)/9=м-2
2) (125а+75)/5=25а+15
3)(27+189х)/3=9+ 63х

Answer 3

№68. Вычислить, используя свойства деления:

1) 14145:5

To solve this division problem, we divide 14145 by 5:

14145 ÷ 5 = 2829

Therefore, the result of 14145 divided by 5 is 2829.

2) 16128:4

To solve this division problem, we divide 16128 by 4:

16128 ÷ 4 = 4032

Therefore, the result of 16128 divided by 4 is 4032.

№69. Упростить выражение:

1) (9m-18):9

To simplify this expression, we can divide each term inside the parentheses by 9:

(9m - 18) ÷ 9

Dividing 9m by 9 gives us m, and dividing -18 by 9 gives us -2:

m - 2

Therefore, the simplified expression is m - 2.

2) (125a+75):5

To simplify this expression, we can divide each term inside the parentheses by 5:

(125a + 75) ÷ 5

Dividing 125a by 5 gives us 25a, and dividing 75 by 5 gives us 15:

25a + 15

Therefore, the simplified expression is 25a + 15.

3) (27+189x):3

To simplify this expression, we can divide each term inside the parentheses by 3:

(27 + 189x) ÷ 3

Dividing 27 by 3 gives us 9, and dividing 189x by 3 gives us 63x:

9 + 63x

Therefore, the simplified expression is 9 + 63x.