Answer:
The expressions for the payment made to Mary are,
(Monday) 90 = 15m + b
(Tuesday) 62 = 8m + b
where m and b are the fee per student and the base fee, respectively. Solving for m and b, the values are 4 and 30.
The equation that represents Mary's earning is
y = 4x + 30
For 20 students,
y = 4(20) + 30 = 110
For Lisa's earnings,
y = 8x + 15
Substituting 20,
y =8(20) + 15 = 175
Thus, Lisa would earn more than Mary by $65.
(Btw this is not my work, I got it from someone else on brainly and wanted to help lol)
Answer:
what is the cost of 1 candy bar?
Step-by-step explanation:
Answer:
5 to 3 ratio
Step-by-step explanation:
Vadim has 18 books. The total books is 30.
30 to 18 simplified is 5 to 3.
Answer:
The value of f approaches P(E) when the value of N is very large. Think of the probability of event E as the fraction of times E occurs when the trial is repeated a great number of times.
Step-by-step explanation:
To find the GCF, you have to list all factors of each number and find the first common one.
12 = 1, 2, 3, 4, 6, 12
28 = 1, 2, 4, 7, 14, 28
36 = 1, 2, 3, 4, 6, 9, 12, 18, 36
the GCF of numbers 12, 28, 36 is 4.
hope this helps, God bless!
