Let, the Mary has money = 7x
& Jane has = 5x
It is given that, 7x + 5x = 60
12x = 60
x = 60/12
x = 5
So,7(5) = 35 & 5(5) = 25
In short, Mary has $35 & Jane has $25
Hope this helps!
The chances of her being picked are 3/26...so the chances of her not being picked are 23/26
You have to find how much does it grow each year.
Ratio of height and years. Height is 10 units and age 5 units.
Ratio = 10/5 = 2
So 2 units a year.
Answer:
18.25
Step-by-step explanation:
......ur welcome.............
Answer:
The number of cds to be sold to hit a weekly revenue of 1000 pesos is 25
Step-by-step explanation:
Here, we have the revenue function and we want to know the number of cds to be sold to hit a particular revenue value.
Mathematically from the question;
r = 2x^2 - 10x
in the question; r = 1000
so ;
2x^2 - 10x = 1000
divide through by 2
x^2 -5x = 500
so;
x^2 -5x -500 = 0
x^2 -25x + 20x -500 = 0
x (x -25) + 20(x -25) = 0
(x -25)(x + 20) = 0
x -25 = 0 or x + 20 = 0
x = -20 or 25
Since the number of cds cannot be negative, we only select x = 25 as the correct answer