Step-by-step explanation:
3x-21+4x²-8x+36
4x²-5×+15
360-254= -106
One angle is 254 and the other -106
Answer:
4 miles per hour
Step-by-step explanation:
Let the miles jogged be directly proportional to the hours taken hence we say that m=kh where m is miles, k is constant of proportionality and h is the number of hours. Making k the subject of the formula then . Substituting miles jogged with 3.5 miles and hours with 7/8 hours as given then
Therefore, the constant of proportionality is 4 miles per hour
Answer:the admission cost for each player is $22.5
Step-by-step explanation:
Let x represent the admission cost for each player.
Luke's basketball team went to an amusement park at the end of the season. The cost of the admission for 5 coaches and 12 players was 407.50. The admission cost for each coach was 27.50. This means that
5 × 27.50 + 12x = 407.5
137.5 + 12x = 407.5
Subtracting 137.5 from the left hand side and the right hand side of the equation, it becomes
12x + 137.5 - 137.5= 407.5 - 137.5
12x = 270
Dividing the left hand side and the right hand side of the equation by 12, it becomes
12x/12 = 270/12
x = 270/12 = 22.5
Answer:
Option C 67 upto 70
Step-by-step explanation:
Given that heights of college women" recorded to the nearest inch: the first two class midpoints are 62.5" and 65.5".
This explains that each class width=Difference between mid values of successive classes
Also next class will have midvalue as
So next class has mid value as 68.5 and width as 3
i.e. 1.5 each side should be given
So class interval =
Option c