Answer:
Step-by-step explanation:
<u>It looks like</u>
<u>Cross-multiplication:</u>
- 4m(m+7) = 9*18
- 2m(m+7) = 9*9
- 2m^2 + 14m = 81
- 2m^2 + 14m - 81 = 0
Here is the quadratic equation
The answer to ur question is 20. You just need to set it up into proportions
Answer:
D: I think
Step-by-step explanation:
Answer:
$151.87
Step-by-step explanation:
The new balance includes the previous balance, plus finance/interests charges, plus the new purchases, minus the payment(s).
So,
Previous balance: $142.55
+ Finance charge: $2.82
+ New purchases: $86.50
= Sub-total: $231.87
- Payment: $80.00
= New Balance: $151.87
X + y = 56 ------------------(1)
x:y = 5:3
x/y = 5/3
3 x = 5 y
so, x = (5/3)y---------------(2)
sub (2) in (1)
x + y = 56
(5/3)y + y = 56
5 y + 3 y = 168
8 y = 168
y = 168 / 8 = 21
x = (5/3) x 21
= 35
the value of x - y = 35 - 21
= 14
