Answer: 3/4 cm³
Step-by-step explanation:
V = width x height x length
V = (1/2cm)(3cm)(1/2cm)
V = (3/2)(1/2)
V = 3/4 cm³
First you find 80% of 90. Set up the proportion:
80 X
—— = —-
100 90
I’m simplifying the 80/100 so it’ll be easier to solve:
4 X
— = —-
5 90
Then cross multiply:
4(90) = 5x
360 = 5x
x = 72
So 80% of 90 is 72. (Or you could have multiplied 90 by 0.8 as a shortcut). Now you find 15% of 72. You can either multiply 72 by 0.15 or set up the proportion like this:
15 X
—— = —-
100 72
Cross multiply and solve. You should get 10.8
Since 7 - 3 is in parentheses, I will subtract that first, giving me 4. Next, I divide 11 and 4. 11 / 4 = 2.75
The average number of failures can be found by multiplying .41 (equivalent to 41%) by 375. When you do this, you get 153.75 failures. Rounded to the nearest 10th is 153.8 failures; the nearest whole number, 154 failures.
Answer:16
Step-by-step explanation:6484.00-2800 for installation ends up equaling $3684.00
The you divide that answer by $230.25
That equals 16:The answer is 16 windows
