Use compatible numbers to estimate the quotient 5,514÷82

70.

Step-by-step explanation:

Given  : 5,514÷82

To find : use compatible numbers to estimate the quotient .

Solution : We have given 5,514÷82

Step 1: Find compatible numbers.

Compatible number : Compatible numbers are numbers that are close to the numbers they're replacing that divide evenly into each other.

Here, 5, 514

Estimate of  5, 514  is 5600.

Now estimate of 82 is 80.

Step 2: Divide the 5600 ÷ 80.

Step 3 : Cancel out zeroes

560 ÷ 8.

70.

So, the estimate of  5,514÷82 is 70.

Therefore, 70.

sss (side, side, side)

sas (side, angle, side)

asa (angle, side, angle)

aas (angle, angle, side)

hl (hypotenuse, leg)

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)