Which equation is not a reasonable estimate for 533÷57. how can you know when an estimate is not reasonable? a. 540÷60=9. b.500÷50=10. c.550÷55=10. d.420÷60=7

D. 420÷60=7

Step-by-step explanation:

Given expression,

Since, 533 to nearest ten = 540,

And, 57 to nearest ten = 60,

Now, nearest fifty of 533 = 550,

And, nearest fifth of 57 = 55,

Now, nearest hundred of 533 = 500,

Also, 57 is near to 50,

That is, answer will not much affected by taking 50 in the place of 57,

Again nearest hundred of 533 = 500,

When we analyse above explanation,

we observed that answer is approximately 9 or 10.

Hence, 420÷60=7 can not be the reasonable estimation.

the camry sales+accord sale=828,000. to make it so the two numbers are 18 thousand apart and still equal 828,000, you first need to find out what half of 828,000 is. 828,000/2=414,000. for the two numbers to equal 828,000, you have to add the same amount as you subtract from the middle. in this case, the number is 9,000 because it's half of 18,000. to equal 828,000, you have to add 9,000 to 414,000 for the camry and subtract 9,000 from 414,000 for the accord. 414,000+9,000=423,000.

414,000-9,000=405,000.

423,000+405,000=828,000.

423,000-405,000=18,

hope it