Nan says 21/4 is equal to 5 1/4. Dorothy says it is equal to 4 1/5. Who is correct? Show your work to prove the right answer.

21/4 is equal to 5 1/4

Step-by-step explanation:

converting improper fraction to mixed fraction

21/4 = (4*5 + 1 )/ 4 = 5 1/4

and 4 1/5 = (4*5 + 1) / 5  = 21 / 5

so Nan is correct

Nan

Step-by-step explanation:

21 divided by 4 is 5.25

if you turn that into a fraction, it will be 5 1/4.

if a decimal ends in .25 it will be equivalent to the fraction 1/4

think of it like with quarters, four of them make 1.00 and on quarter makes .25

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

spinning a 1, 2, or 3. option d.

step-by-step explanation: when spinning a number graph up to 4, and aiming for any number less than 3, that automatically eliminates the number 4. now you have two numbers to spin on that are less than 3, but the number 3 is included in this question because it's no greater of an number than itself. i hope this you : )