Given:
15 students
average grade: 80 for 14 students
average grade: 81 for 15 students
80 * 14 = 1120
81 * 15 = 1215
1215 - 1120 = 95
Payton's score on the test is 95.
Answer:
Step-by-step explanation:
Given parameters:
Rate of walking by Lin = 13 miles in 5 hours
Rate of walking by Jada = 25 miles in 10 hours
Distance walked = 3.25 miles
Time of take off = 3:00
Solution:
The rate of their walking amounts to their speed;
Speed =
Speed of Lin = = 2.6 miles/hr
Speed of Jada = = 2.5 miles/hr
To find the time; make it the subject of formula and solve for each person;
Time =
Time of Lin = = 1.25hr = 48 minutes
Time of Jada = = 1.3hr = 47 minutes
Time for each to arrive;
Lin = 3.00 + 1.25hr = 4:25
Jada = 3.00 + 1.30hr = 4:30
<span>300763 is the answer.</span>
You know the area, so you can use the area formula A = 1/2(a+b) (a and b being the parallel sides AB and CD)
So, set 32.5 = 1/2 (AB +CD)
substitute --> 32.5 = 1/2( x+(x+1) )
simplify --> 32.5 = (2x+1)/2
simplify again --> 65 = 2x +1 --> 64 =2x --> 32 =x
Now that you have x, you can substitute it into the formula for your height (x-1) to get 31