In a survey, each of 500 people was found to have a checking account, a savings account, or both. if 300 of these people have checking accounts and 300 have savings accounts, how many people have both a checking account and a savings account?

100

Step-by-step explanation:

300 + 300 = 600

600 - 500 = 100

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

the answer will be the last one