The two given angles are Supplementary angles and when added together need to equal 180 degrees.
2x +5 + x-5 = 180
Simplify ( Combine like terms):
3x = 180
Divide both sides by 3:
x = 180 / 3
x = 60
Assuming the unknown entities are measured in minutes,
E represents entertainment
e = 4a+15
Answer:
44 ten-dollar bills
Step-by-step explanation:
Assume that all 124 bills are ten-dollar bills,
124 x $10 = $1240
Total Value of Money : $840
$1240 - $840 = $400
There are $400 worth of five-dollar bills,
$400 / 5 = 80 (The number of five-dollar bills)
Therfore the number of ten-dollar bills,
124 - 80 = 44
Let's check:
44 x $10 = $440
80 x $5 = $400
Total = $440 + $400
= $840