We have to use rounding or compatible numbers to estimate the difference of 823 and 242.
Since, a quick way to estimate the difference between two numbers is to round each number and then subtract the rounded numbers.
Therefore, rounding the number 823 to the nearest tens = 820
Rounding the number 242 to the nearest tens = 240
The difference between the estimated numbers
= 820 - 240
= 580
Therefore, the estimated difference is 580.
Answer:Two fractions are equivalent if they have the same value. The numbers may be different, but the overall value is the same. To determine if two fractions are equivalent, cross multiply.
Step-by-step explanation: For example, 1/2 and 2/4 are equivalent fractions because they both represent one-half of something.
Answer:
Step-by-step explanation:
A certain drug is made from only two ingredients: compound A and compound B. There are 5 milliliters of compound A used for every 7 milliliters of compound B. If a chemist wants to make 816 milliliters of the drug, how many milliliters of compound B are needed?
Find out the number of 5% from its original total of 1080 workers.
1080×5%=54
Then,find the total of the employees.
1080+54=1134
So,the new number of employees is 1134.
