Step-by-step explanation:
1.)20x + 100 = 1440
-Let the number of couples be x. So, the total amount paid by all the couple’s are $20x. School paid $100 as security, so the total amount paid is
$ (20x + 100)
2.) 20x = 1440 - 100 ⇒ 20x = 1040
X = 52
3. ) The security money is $100, so the couples paid $1440- 100 = $1040 in total. As the couples paid $ 20 each than- = 52
Answer:
7x + 5 -15x -23 +5y
= -8x-18+5y
Step-by-step explanation:
Answer:
C)
Step-by-step explanation:
1/2 = 0.5
5/8 = 0.625
7/11 = 0.63
2/3 = 0.66
Hello here is a solution
look graph :
the curve : color blue
the first tangent : y = 0.13x +1.87 color Pink
the second tangent : y = 1.88 x +0.14 color green
Answer:
B
Step-by-step explanation: