Grace wants to buy a portable music player for $150 dollars. Her weekly allowance is $15. If she saves $10 each week toward the cost of the portable music player, how many weeks will it take Grace to save enough to buy it?

The answer is 15 weeks.

Step-by-step explanation:

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15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

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