Assuming you meant what is c, c is equal to 8.9
<h2>
Answer:</h2><h2>Bethany started het homework at 3.05 PM approx 3 PM.</h2>
Step-by-step explanation:
The number of problems completed by Bethany = 25
The time taken to complete 1 problem = 3 minutes
The time taken to complete 25 problems = 25 * 3 = 75 minutes
Bethany finished her math homework at 4:20 p.M.
So she started 75 minutes 4.20 PM, (i.e) 3.05 PM or
approx around 3 PM.
Answer:
adults=31, children = 108
Step-by-step explanation:
a + c = 139 equation 1
10a + 8c = 1174 equation 2
a=139-c isolate a from equation 1
10(139-c) + 8c = 1174 substitute a value into equation 2
1390-10c + 8c = 1174
-2c = -216
c = 108
use value of c in either equation to find value of a
a + c = 139
a + 108 =139
a = 31
Answer:
C
Step-by-step explanation:
Longest practice is 2 1/2 hours long
Shortest is 1 1/4 hours long
For difference, subtract 1 1/4 from 2 1/2
Convert mixed to improper fractions
(2*2+1)/2 - (1*4+1)/4
5/2 - 5/4
10/4 - 5/4 = 5/4
Change back to mixed fraction
1 1/4
$105.44 as 44 rounds down to 40 to the nearest 10.