SA = 2(wl + hl + hw)
SA = 208
h = 8
l = 6
208 = 2(6w + (8*6) + 8w)
208 = 2(14w + 48)
208 = 28w + 96
208 - 96 = 28w
112 = 28w
112/28 = w
4 = w <==== the width is 4 cm
Answer:
18 jumps per every 2 hour period
Step-by-step explanation:
6÷3=2
54÷3=18
Answer:
71 1/2 square feet
Step-by-step explanation:
We want to find the area of the wall that will be painted.
We need to find the area of the two windows and subtract it from the area of the wall.
Each window is 3 1 /2 ft by 4 1/2 ft. The area of each window is therefore:
A = L * B
A = 7/2 * 9/2 = = 63/4 square feet = 15 3/4 square feet
The two windows therefore have an area of:
2 * 63/4 = 63/2 = 31 1/2 square feet.
The wall measures 12 7/8 ft by 8 ft. Therefore, the area of the wall is:
A = 103/8 * 8 = 103 square feet
The area of the wall that will be painted is therefore:
A = 103 - 31 1/2 = 71 1/2 square feet
Answer:
(a) 0.198 cm/s (b) 1 cm/s
Step-by-step explanation:
It is given that,
The rate of change of area of a cicle, 
(a) The area of a circle is given by :
Differentiate both sides,
(b) Circumference, 
= 5 cm
Hence,
(a) 0.198 cm/s (b) 1 cm/s
Answer:
Loss Amount: 175; Price: 3325
Step-by-step explanation:
You can multiply 3500 by 0.05 (which is 5% in decimal) to find how much is the loss. Then, you subtract the loss from the base price to find the new price.
