Question

Use mental math to find equations that have a quotient of 80. Select all that apply.

A. 1600 : 20
OB. 16,000 = 20
O C. 160 : 20
OD. 16,000 : 200
O E. 1600 : 2

Answer 1

To find equations that have a quotient of 80 using mental math, we can multiply the divisors and check if the quotient is close to 80. The equations that have a quotient of 80 are A. 1600 : 20 and D. 16,000 : 200.

Step-by-step explanation:

To find equations that have a quotient of 80 using mental math, we can multiply the divisors by different numbers and check if the quotient is close to 80. Let's go through the options:

1. A. 1600 : 20 - Dividing 1600 by 20 gives us a quotient of 80, so this equation works.
2. B. 16,000 = 20 - This equation is not a division, so it is not relevant for finding a quotient of 80.
3. C. 160 : 20 - Dividing 160 by 20 gives us a quotient of 8, not 80.
4. D. 16,000 : 200 - Dividing 16,000 by 200 gives us a quotient of 80, so this equation works.
5. E. 1600 : 2 - Dividing 1600 by 2 gives us a quotient of 800, not 80.

Therefore, the equations that have a quotient of 80 are A and D.

Answer 2

The answer is option A.1600 : 20

because 1600/20 = 80.