Answer:
35
Step-by-step explanation:
Let x represent the HCF of the ages. Then we can have ax = 10 represent Lena's age, and bx can represent her dad's age.
The LCM will be abx = 14x, so we have ab = 14.
Factors of 14 are 1·14 and 2·7. Since the ratio of ages is between 30/10 = 3 and 45/10 = 4.5, we must have b/a in that range. This will be the case for ...
a=2, b=7
For a=2 and ax=10, we have x=5.
The dad's age is bx = 7·5 = 35.
6C4 = 6!/(4!2!)= 720/(2*24)=15
Answer:
The students prefer Math 60%, to Science 40%
Step-by-step explanation:
15/25= 3/5= 5 is then divided into 3 to get the per cent= 60%
M=y2-y1/x2-x1
6-5/8-0
1/8
The answer is A
Hope this helps!
Answer:
Step-by-step explanation:
Let y be the total price and x be the months passed,
Since the enrollment fee is $50, the y-intercept would be 50 regardless of the months passed. Also, since the price increases by $60 every month, we know the gradient is 60.
Therefore, the equation is
