Fifteen boards are stacked on top of each other. The thickness of each board is 4 2 3 cm . Find the height of the stack.

To find the height of the stack, we need to multiply the thickness of each board by the number of boards. Given that the thickness of each board is 4 2 3 cm , we can convert this mixed fraction into an improper fraction: 4 2 3 = 4 × 3 + 2 3 = 14 3 cm . Now, to find the height of the stack, we multiply the thickness by the number of boards: Height = Thickness × Number of Boards = 14 3 × 15 = 70 cm Therefore, the height of the stack is 70 cm .

Fifteen boards are stacked on top of each other. The thickness of each board is 4 2 3 cm . Find the height of the stack.

To find the height of the stack, we need to multiply the thickness of each board by the number of boards. Given that the thickness of each board is 4 2 3 cm , we can convert this mixed fraction into an improper fraction: 4 2 3 = 4 × 3 + 2 3 = 14 3 cm . Now, to find the height of the stack, we multiply the thickness by the number of boards: Height = Thickness × Number of Boards = 14 3 × 15 = 70 cm Therefore, the height of the stack is 70 cm .

What should be added to 5 1 2 to get 10 ?

To find the value that should be added to 5 1 2 to get 10 , we can subtract 5 1 2 from 10 : 10 - 5 1 2 = 10 - 5 × 2 + 1 2 = 10 - 11 2 = 20 - 11 2 = 9 2 = 4 1 2 Therefore, 4 1 2 should be added to 5 1 2 to get 10 .

In a division problem the divisor is 4 5 , the quotient is 5 8 of the divisor and the remainder is zero. Find the dividend.

To find the dividend in a division problem, we can use the relationship between the divisor, quotient, and dividend. Given that the divisor is 4 5 and the quotient is 5 8 of the divisor, we can calculate the quotient as follows: Quotient = 5 8 × 4 5 = 20 40 = 1 2 . Since the remainder is zero, we know that the dividend is divisible by the divisor without any remainder. In other words, the dividend is a multiple of the divisor. To find the dividend, we can multiply the quotient by the divisor: Dividend = Quotient × Divisor = 1 2 × 4 5 = 4 10 = 2 5 . Therefore, the dividend in this division problem is 2 5 .