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aivan3 [116]
2 years ago
13

Ten people can dig 2 acres of land in 7 days. How long will 8 people working at half the rate of the first group take to dig 6 a

cres of piece of land?​
Mathematics
1 answer:
Fiesta28 [93]2 years ago
5 0

Answer:

52.5 days

Step-by-step explanation:

Ten people can dig 2 acres in 7 days.

One person can dig 0.2 acres in 7 days.

Working at half the rate, one person can dig 0.1 acre in 7 days.

8 people can dig 0.8 acres in 7 days.

8 people can dig 6/0.8 * 0.8 acres in 6/0.8 * 7 days.

8 people can dig 6 acres in 52.5 days

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Answer: B. 4

Step-by-step explanation:

4 0
3 years ago
11. What is the perimeter of the garden?
Ilya [14]

Answer:

19\frac{1}{4} or 18\frac{5}{4}

Step-by-step explanation:

First, add the whole numbers

3, 7, and 8

18

Add the fractions

\frac{1}{2}+\frac{3}{4}=\frac{5}{4}

IF YOU WANT SIMPLIFIED NUMBER DO THIS

\frac{5}{4}=1\frac{1}{4}

18+1\frac{1}{4}=19\frac{1}{4}

6 0
2 years ago
a circle has a radius of 4 an arc in this circle has a central angle of 288 what is the length of the arc
AnnZ [28]

Answer:

20.1 units

Step-by-step explanation:

2πr * X/360, where X = angle measure

2(3.14)(4)(288/360)

20.1 units

4 0
3 years ago
What is the point slope form of a line with slope 3 that contains the point (2,1)
Mice21 [21]

Answer:

y - 1 = 3 ( x - 2)

Step-by-step explanation:

The formula for point slope form is y-y1=m(x-x1)

Just substitute the given information into the equation to get your answer.

(reminder m=slope, y1=the given y value, x1= the given x value)

HOPE THIS HELPS

7 0
3 years ago
I need help with all of it ...
erastovalidia [21]
1)
36/3 x 42/3 = 12yd x 14yd

12×14=168

you will need 168 square yards to recarpet the kindergarten.


2)
168×24.99=4198.32

it will cost $4198.32 to recarpet the kindergarten.


3)
3.5 is 35% of 10

4198.32÷3.5=1198.52

they will need to sell 1199 coupon books to completely pay for the the recarpeting.
6 0
3 years ago
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