"of" means to multiply.
20% * 60
= 0.2 * 60 (since % means divide by 100)
= 12
Find the area of the wheel:
Area of a circle is found using the formula:
Area = PI x r^2
9 inch would be the diameter, so the radius would be 9/2 = 4.5 inches.
The area would be 3.14 x 4.5^2 = 63.6 square inches.
Now divide the price by the area to get price per square inch:
Cost per square inch = 18.60 / 63.6 = $0.29 (rounded to the nearest cent)
Answer:
4
Step-by-step explanation:
you would do 20÷5=x
to check it it would be 5x=20
5×4=20
Try this suggested solution (see the attached picture, the answer is [-2;1]).
1 step to drow the graph required in the condition;
2 step to find intersection point (this is the A point);
3 step, check stage, to solve the system of two equations.
4 to compare the results in step 2 and step 3.