Question

The science department of comstock high school must purchase a set of calculators for a class . if the cost of one calculator is $241 , estimate the cost of 21 calculators by rounding by the numbers to the tens place
the estimated cost of 21 calculators is approximately $

plss help me

Answer 1

Answer:

The estimated cost of 21 calculators is approximately $4,800

Step-by-step explanation:

we know that

To estimate the total cost of the calculators, multiply the cost of one calculator by the number of calculators, but first round the numbers to the tens place

so

Cost of one calculator-----> $241

Round to the tens place ----> $241=$240

Number of calculators ----> 21

Round to the tens place ----> 21=20

The estimate cost is

(240)(20)=(240)(10)(2)=$4,800

therefore

The estimated cost of 21 calculators is approximately $4,800