Question

Help me, 50 pts, I'll give brainliest, *take your time answering if you need *
1. how many groups of 5/7 are in 1
2. 8 divided by 5/7
3. The tape diagram shows that Ehecatl's hair, which is now 12cm long is 60% as long as it was before his haircut.
Complete the table to show different percentages of Ehecatl's hair length before the haircut. (table is the file)

Answer 1

There are 1.40 groups of 5/7 in 1.

8 divided by 5/7 is  11 1/5.

Here is the completed table:

Length (cm)       Percentage

  12                          60% of Ehecatl's old hair

   4                         20% of Ehecatl's old hair

  20                           100% of Ehecatl's old hair

How do we carry out division?

Division is the process of grouping a number into equal parts using another number. The sign used to denote division is ÷. Division is one of the basic mathematical operations.

In order to determine how many groups of 5/7 are in 1, divide 1 by 5/7

1 ÷ 5/7

1 x 7/5 = 7/5  = 1.40

8 ÷  5/7

8 x 7/5

= 56 / 5

= 11 1/5

What are the lengths of  Ehecatl's hair ?

The first step is to determine the length of her hair before she cut it

Length of the hair before it was cut = new length / 60%

12 / 0.6 = 20

60% x 20 = 12cm

20% x 20 = 4cm

100% x 20 = 20cm

To learn more about division, please check: https://brainly.com/question/13281206

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