Answer:
they moved forward 15 yards
Step-by-step explanation:
Answer:
x >= 1
Sorry this keyboard doesn't have greater than or equal to symbol.
Step-by-step explanation:
-1.5(4x+1) =< 4.5 -2.5(x+1) Distribute factors to get:
-6x - 1.5 =< 4.5 -2.5x -2.5
Combine like terms on right
4.5-2.5=2 Add 2.5x to both sides and add 1.5 to both sides. You get
-3.5x =< 3.5 Divide both sides by -3.5 and remember to reverse the less than to more than when you divide by a negative number.
x >= 1
Answer:
£17.59
Step-by-step explanation:
100 + 10 = 110% (Price of a ticket after increase)
110% = 19.35
1% = 19.35 ÷ 110 = 0.1759
100% = 0.1759 x 100 = 17.59
Answer:
Probability that in a random sample of six cities, the sample mean would be more than 40 is 0.3372.
Step-by-step explanation:
We are given that the percent of births to mothers with less than a college education in all of the most populated cities in the U.S. has an average of 39.3 with a standard deviation of 4.1.
Assuming the data follows distribution. Also, a random sample of six cities is selected.
<em>Firstly, Let </em><em> = sample mean of six cities</em>
The z score probability distribution for sample mean is given by;
Z = ~ N(0,1)
where, = average percent of births = 39.3
= standard deviation = 4.1
n = sample of cities = 6
Probability that in a random sample of six cities, the sample mean would be more than 40 is given by = P( > 40)
P( > 40) = P( > ) = P(Z > 0.42) = 1 - P(Z 0.42)
= 1 - 0.66276 = 0.3372
Therefore, probability that the sample mean would be more than 40 is 0.3372.