Richard found 93 - 67 by adding up on the open number line. is he correct? explain. then write an addition equation to show how you could check his work

Yes, he is correct

Step-by-step explanation:

In the picture attached, the complete question is shown.

Richard instead of subtract 67 to 93 by subtracting successively 6 tens and 7 ones starting at point 93, which result in 26; he added 26 to 67, to do so he marked 67 on the line and then added 2 tens and 2 threes until he reached 93. Notice that 10 + 10 + 3 +3 = 26.

To check his work we make the following addition: 67 + 26 = 93, which is another way to write 93 - 67 = 26

i am sorry it just submitted an answer but the answer is 365 boys. hopes this

step-by-step explanation:

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6