Let
x---------> <span>represent the number of weeks
y---------> </span><span>represent the amount of money saved
we know that
for x=6 weeks y=40*6-------> $240
then
300-240--------> $60----------> initial amount for x=0
the equation is
y=40*x+60
the answer is
</span>y=40*x+60<span>
</span>
(a) The amount of markup is $7.20.
(b) The list price is $23.20.
Step-by-step explanation:
Step 1:
The markup price is the price by which a seller has increased the product's price. The markup price is the difference between the selling price and the buying price.
Darla marked the price up 45%, so we need to determine how much 45% of $16 is.
45% of $16 =
So she increased the price by $7.20.
Step 2:
The price at which she has listed the bracelet is the sum of the buying price and the markup price.
The list price = The buying cost + the markup cost = $16 + $7.2 = $23.20.
Answer:
30 and 40
Step-by-step explanation:
That L-shaped sidewalk and the shortcut through the grass form a triangle, a rectangle triangle.
The shortcut represents the hypotenuse, and the two other sides sum up to 70 yards.
What's the relationship between the hypotenuse of a rectangle triangle and the other sides?
c² = a² + b²
So, we have here:
50² = a² + b²
50² = 2500
What are 2 numbers that are square numbers and added together make 2500? (think 25 it's easier and same principle)
How about 1600 and 900?
So, 2500 = 1600 + 900, or 50² = 40² + 30²
so the two sides legs of the sidewalk measure 30 and 40 yards.
Make them have common denominators: 14/8(3/3)=42/24, 15/12(2/2)=30/24, 42/24+30/24. Add numerators: 42+30=72, 72/24. Simplify: 72/24=3, 24/24=, 3/1=3. 3 is your answer :)
Answer:
The ordered pair is (4,-1)
Step-by-step explanation:
Let
x ---> the first number
y ---> the second number
we know that
Five times a number minus twice another number equals twenty-two
so
-----> equation A
The sum of the numbers is three
so
isolate the variable y
----> equation B
substitute equation B in equation A
solve for x
Find the value of y (equation B)
threrefore
The ordered pair is (4,-1)