Answer:
42.8 + or - 12
Step-by-step explanation:
He's either gaining or losing $12 so you can write 42.8 plus or minus 12 as the equation
hello,
Jack wants to know how many families in his small neighborhood of 60 homes would help organize a neighborhood fund-raising party. He put all the addresses in a bag and drew a random sample of 30 addresses. He then asked those families if they would help organize the fund-raising party. He found that 12% of the families would help organize the party. He claims that 12% of the neighborhood families would be expected to help organize the party. Is this a valid inference?
Yes, this is a valid inference because the 30 families speak for the whole neighborhood
it's the correct one because if he ask 30 families so they talk to their neighborhood so its will be 60 ;) so its correct,
hope this help
Answer:
yes yes they do lol
Step-by-step explanation:
Answer:
The percent of 11 to 50 is 22%
The percent of 72 to 80 is 90%
Step-by-step explanation:
Find an equivalent fraction with denominator 100
Then multiply:
72 × 100
Divided by the original number which was 80
Then multiply that by 1/100 which equals 90/100
So 90%
