Answer:
25 days
Step-by-step explanation:
If 6 men each work for 5 hours a day: 6 x 5 = 30 hours of work per day
If it takes them 50 days to build the house, then 30 x 50 = 1500 hours work in total to build the house.
If 10 men are working 6 hours a day each: 10 x 6 = 60 hours of work per day.
So 1500 ÷ 60 = 25 days
Therefore, it would take 10 men 25 days to build a house if they were each working 6 hours per day.
Answer:
(350 , 600)
just divide the miles by time
Answer:
38
Step-by-step explanation:
40 x 95/100 = 38
95 is the amount
40 is the percent that this item is off by
100 is the maximum percent the item can be off by
Another example to prove this
40 percent * 95 =
(40:100)* 95 =
(40* 95):100 =
3800:100 = 38
You'll want to work with the center-radius form of a circle equation for this. the center formula is <span>(x – h)</span>²<span> + (y – k)</span>²<span> = r</span>², where (h, k) is your center and r is your radius. plug in the information your circle gives you: A(-3, 12), radius = 5
(x + 3)² + (y - 12)² = (5)² ... simplify the right side
(x + 3)² + (y - 12)² = 25 ... from here, you need to foil both of your binomials to convert this to the "general form" that your answer choices are in.
(x + 3)² = (x + 3)(x + 3) = x² + 6x + 9
(y - 12)² = (y - 12)(y - 12) = <span>y² - 24y + 144
</span>
x² + 6x + 9 + y² - 24y + 144 = 25 ... combine like terms
x² + 6x + y² - 24y + 153 = 25 ... subtract 25
x² + 6x + y² - 24y + 128 = 0 is your equation. reorder it so that it's from the highest degree to the lowest: x² + y² + 6x - 24y + 128 = 0 is your result (C).
