Answer:
Step-by-step explanation:
Let the width of the rectangle be 'w' inches
length of the rectangle= (2w+9) inches
Perimeter of the rectangle= 48 inches
Perimeter of a rectangle= 2(Length+Width)
Recall the formula SA=472
$3.39
$6.78
$30.52
$122.08
Answer: $30.52
Step-by-step explanation:
Hi, to answer this question we have to calculate the surface area of the ornament:
Surface Area of a sphere = 4π r²
Replacing with the values given:
A = 4(3.14) (9)² = 1,017.36in2
Finally, we have to multiply the surface area by the price per square inch of glass.
1,017.36 (0.03)= $30.52
Feel free to ask for more if needed or if you did not understand something.
Answer:
$30.52
Step-by-step explanation:
4 x 9^2 x 3.14 x 0.03 = around 30.52
Answer:
36
Step-by-step explanation:
We know that for every 5 red bricks there were 2 gray bricks.
The total amount of red bricks and grey bricks in this sample is 7.
5 red bricks + 2 grey bricks = 7 bricks
Now, we divide 175 "total number of bricks used" by 7 "5 red bricks + 2 grey bricks = 7 bricks" and we will get a quotient of 25.
Now we know that 25 bricks is of the wall. The gray bricks are so we can multiply 25 by 2 and we will get a product of 50. If 1/7 = 25 grey bricks so 2/7 would be the grey bricks.
175 - 50 = number of red bricks.
Therefore, there were 125 red bricks.