Jackson estimated 637 ÷ 78 as 640 ÷ 80. he reasoned that 64 tens divided by 8 tens should be 8 tens. is jackson’s reasoning correct? if so, explain why. if not, explain a correct solution.

the correct solution has been explained

Step-by-step explanation:

Jackson,s reasoning is incorrect  because it should be 8 ones and not 8 tens that would give 64

Moreover,

as

whereas = 8

clearly, both quantities are different

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm