Answer:
-54
Step-by-step explanation:
You'd simply have to find 20% of $40. To find the percent of a number, you would change the percent into an actual decimal/number, and then multiply them both. So the percent would become 0.20.
40 × 0.20 = 8
So now you would subtract 8 from the cost of 40.
40 - 8 = 32.
The shirt costs $32.
Answer:
Length:28 cm
Width: 13 cm
Step-by-step explanation:
Let
x ---> the length of a rectangle picture frame
y ---> the width of a rectangle picture frame
we know that
The area of a rectangle picture frame is equal to

we have

so
----> equation A
The length of a rectangle picture frame is 2 centimeters more than twice it’s width
so
---> equation B
Solve the system by graphing
Remember that the solution is the intersection point both graphs
The solution is the point (28,13)
see the attached figure
therefore
Length:28 cm
Width: 13 cm
Fraction: 180/x = 3/100
cross multiply: 18000 = 3x
divide ea. side by 3: x = $6,000
Amt. of sales = $6,000
Answer:
Step-by-step explanation:
<u>Use the property of 45 degree right triangles</u>
- c = a√2, where c- hypotenuse, a = legs
<u>Top diagram</u>
<u>Bottom diagram</u>