You could say:
y = 4x + 10
John runs 10 miles a week, after every month he adds 4 miles.
y = 3x + 15
Mary runs 15 miles a week, after every month she adds 3 miles.
'y' would represent the total miles and 'x' would represent the number of months.
Step-by-step explanation:
Let's represent Aaron's age with x and
Charlene's age with x+8
x+x+8=44
2x+8=44
2x=44-8
2x=36
x=36÷2
x=18
Aaron is 18 years old.
While Charlene is 18+8=26 years old.
<em>Hope this </em><em>helps!</em>
Answer:
$4,208.5
Step-by-step explanation:
The simple interest rate of the college savings account, R = 5.5%
The amount with which the account was opened, P = $500
The amount added each month to her account = $50
The amount in her account after 4 years = Required
The interest on each added $50 is given as follows;
50 × 0.055/12 × (1 + 2 + 3 + ... + 47) = 50 × 0.055/12 × (47/2)(1 + 47) = 258.5
The total amount deposited = 500 + 50 × 47 = $2,850
The total interest = 500×0.55×4 + 50 × 0.055/12 × (47/2)(1 + 47) = 1,358.5
The amount in her account at the end of 4 years, <em>A</em>, is given as follows
A = $2,850 + $1,358.5 = $4,208.5
The work out problem
<span>1/4)*y = 5*x // - 5*x
(1/4)*y-(5*x) = 0
(1/4)*y-5*x = 0
1/4*y-5*x = 0 // - 1/4*y
-5*x = -(1/4*y) // : -5
x = (-(1/4*y))/(-5)
x = 1/20*y
x = 1/20*y</span>
Answer:
10 miles
Step-by-step explanation:
5 1/4+ 4 3/4 = 10
