Question

Which situation is best modeled with a division expression?

Answer 1

joylins first error is option a.

finding the number of equal-sized parts into which a number can be split

Step-by-step explanation:

Let us split the number 80 into 10 equal parts.

80 = 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8

= 8 + 8 + 8 +...to 10 times

= 8(10)

or

So, if N is any number and p is one of its equal part, then the number of parts into which N is split by p is .

Hence, finding the number of equal-sized parts is best modeled with a division expression.

i think manny question is incomplete.

please mark it as brainliest.i have tried very hard.hope this helps

Answer 2

Answer:

1. a.Finding the number of equal- sized parts into which a number can be split

2.b. She replaced both the divisor and the dividened with their reciprocals when changing division to multiplication in step 2.

Step-by-step explanation:

1.

a.Finding the number of equal- sized parts into which a number can be split

It is a division expression because when we find the total number of equal sized number then we divide the number which is split by the number in which a number split.Hence, it is true.

b.Finding the combined value of several numbers

It is obtained by simply adding of several numbers . Therefore, it is not a expression. Hence, it is false.

c. Finding the distance between two numbers on a number line

It is obtained by simply by adding or subtracting of two numbers . Therefore, it is not a division expression. Hence, it is false.

d. Finding the total value when several of the same number are grouped together

It is obtained by simply adding of same number which are grouped together.Therefore, it is not a division expression. Hence, it is false.

2.Joylin' work to solve a math problem

Manny walked $\frac{5}{16}$ of the distance to the library in$\frac{1}{3}$ of an hour

Manny walks at a constant rate it means the speed remain same

Constant rate=$\frac{\frac{5}{16}}{\frac{1}{3}}$

h=$\frac{5}{16}\div\frac{1}{3}$

h=$\frac{5}{16}\times 3$

Hence, Joylin makes mistake in second step.

2.b. She replaced both the divisor and the dividened with their reciprocals when changing division to multiplication in step 2.