Answer:
12/4=3 or 12/3=4
Step-by-step explanation:
because multiplication is the opposite of division
Answer:
x = 20
Step-by-step explanation:
The three angles form a straight line so they add to 180 degrees
x+ 100 +3x = 180
Combine like terms
100+4x= 180
Subtract 100 from each side
100+4x-100= 180-100
4x= 80
Divide each side by 4
4x/4 = 80/4
x = 20
Answer:
w=4
Step-by-step explanation:
search the questions up
Answer:
Step-by-step explanation:
<u>The scale is</u>
- 1/8 in = 10 miles
- 1/8*8 in = 10*8 miles
- 1 in = 80 miles
<u>Then</u>
<u>Cross multiplication</u>
- x - 248
- 1 - 80
- x = 248/80 = 3.1 in
Answer:
The null and alternative hypotheses are:


Under the null hypothesis, the test statistic is:




Therefore, the test-statistic is 
Now the F critical value at 0.02 significance level for df1 = 10- 1 =9 and df2 = 16 - 1 =15 is:

Since F statistic is greater than the F critical value, we therefore, reject the null hypothesis and conclude that there is sufficient evidence to support the claim that there is a difference in the variation in the listening times for men and women.