Answer:
Step-by-step explanation:
Given that a survey asked, "How many tattoos do you currently have on your body?" Of the 1221 males surveyed, 193 responded that they had at least one tattoo. Of the 1005 females surveyed, 130 responded that they had at least one tattoo.
(two tailed test at 1% significance level)
Difference in proportions = 
Standard error for difference in proportions = 0.0150
Margin of error = 2.58*std error
= 0.0387
99% confidence interval =
Since this confidence interval contains 0 for difference in proporiton we can say that H0 is true.
We are 99% confidence that for samples randomly drawn for large sizes, the males and females have approximately the same proportion.
Y2 - y1/x2 - x1 = slope
4 - 8/ 9 - 5 = slope
-4/4 = slope
-1 = slope
hope this helps :)
A city pool sells full-day and half-day passes during the summer. The goal is to make $1000 each day from pool pass sales. The graph shows the number of full-day and half-day passes they need to sell to make $1000.
the maximum number of half-day passes the pool can sell and make exactly $1000
From the graph the half day passes is on x axis.
WE can see that the maximum on x is 200
Half day passes starts at 0 and ends at 200
200 is the maximum number of half-day passes the pool can sell and make exactly $1000
Answer:
3 bags of chocolate chips and 3 bags of walnuts
Step-by-step explanation:
1 pound = 16 ounces (oz). So, our dear Jemina needs 48 ounces. Then, we do system of equations. one of the equations are 3x +2y = 15(dollars), and then second is 12x + 4y = 48. (ounces/pound). Let's solve for x first. We multiply the dollars equation by 2 to eliminate y from both equations. 6x +4y = 30. When you subtract, you get 6x = 18. So, x = 3, Jemina buys 3 chocolate chips bags. So, thats $9. So, she also spends $6 on walnuts. For checking, 3 bags of chocolate chips = 36 ounces. 3 bags of walnuts = 12 ounces. 36+12 ounces = 48 ounces. :D
Answer:
8 and 10
Step-by-step explanation:
the ratio of the two numbers is 4:5
So let's take 4 and 5 as our number, we find out that their LCM is 20.
The next pair would be 8 and 10. Their LCM is 40 , so they are the numbers.
