Answer:
22/7
Step-by-step explanation:
d=2
i.e r=d/2=1
then area of circle=πr^2
=22/7 *1
=22/7 i.e 3.1415
Answer: y= 25+2.5x
Step-by-step explanation:
Let a = base pay , b = additional amount per newspaper.
Given: Last week, Pedro delivered 5 newspapers and earned $37.50.
i.e. 37.50=a+5b (i)
This week, he delivered 20 newspapers and earned $75.
i.e. 75=a+20b (ii)
Eliminate (i) from (ii)
37.50=15b
, i.e. additional amount per newspaper= $2.5
Put b= 2.5 in (i)
, i.e. base pay = $20
Let x= Number of newspapers Pedro delivers.
y= Earnings he receives in dollars.
y= 25+2.5x will be the required function.
Answer:
64
Step-by-step explanation:
The volume of a cubic box with side length of s inches can be calculated using the following formula
If the initial side length was 3 inches and the customer asked Simon to increase each one of the sides of the box by one inch, then the new side lengths now become 4 in (3+1 = 4)
Therefore the final and new volume is
64
Answer:
$9.92 (rounded off to nearest cent)
Step-by-step explanation:
Square of 7-inch radius pizza = = 49 inches
49 Inches = $6
Square of 9-inch radius pizza = = 81 inches
Given 49 Inches = $6
1 inch =$
I will leave it as a fraction as it is not the final answer, rounding it off will result in a loss of accuracy.
81 Inches =
= $9.92 (rounded off to nearest cent)