10 cards are numbered from 1 through 10. The cards are drawn at random. If two cards are drawn with replacement, find the probability of choosing a prime number in both the first and the second draw.

P(prime,prime) = 4/10 x 4/10 or 2/5 x 2/5 = 4/25

Step-by-step explanation:

2,3,5,7 are primes from 1 through 10

probability of drawing a prime card is 4/10

4/25  or  16%

Step-by-step explanation:

There are 4 prime numbers between 1 and 10 (2, 3, 5, 7)

There are 10 cards to choose from.

The formula for probability is (success)/(total)

4/10  x  4/10  =  16/100 or 4/25

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )

step-by-step explanation: