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asambeis [7]
2 years ago
12

If it took 3 people 10 hours to plant a large garden, how long would it take one person? plzz help

Mathematics
2 answers:
ivanzaharov [21]2 years ago
6 0
30 hours. hope this helps :)
liubo4ka [24]2 years ago
6 0

Answer:

30 hours bro good luck man

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Find how many numbers greater than 400,000 can be made using all the digits of 416566​
Mandarinka [93]

Answer:

20

Step-by-step explanation:

You have to fill in 6 slots _ _ _ _ _ _.

Since first digit must be 4, there is only 1 way to fill in the 1st slot.

with the 5 slots, we fill in the 6s first, 3 of them.

So we have 5 options and 3 items to fill, (5 choose 3).

Then 2 ways to fill 1 and 1 way to fill 5. (It doesn't matter if you pick 5 or 1 first).

So it becomes (5C3) * (2C1) *(1C1)

= 1 * 5!/(3!)(5-3)! * (2) * 1

= 20

4 0
3 years ago
Solve the system <br> 5x+3y=-9 &amp;- 2x+y=8
lianna [129]
5x+3y=-9
-2x+y=8

The first step is the trickery (and quite frankly, hardest to explain) part. You need to multiply one equation by a number that will create one variable to be the negative version of the other...(Confusing, right? Don't worry, I'll show you)

We are going to solve for X first.

We will multiply the second equation by -3
5x+3y=-9
-3(-2x+y)=(-3)8

Now simplify:
5x+3y= -9
6x-3y= -24

Now combine the two equations (add them together)
11x= -33
Divide by 11
X=-3

Now plug X in to one of the first equations:
5(-3)+3y= -9
-15+3y =-9
3Y= 6
Y= 2


So your final answer is:
x= -3
Y= 2

Hope this helps!
3 0
3 years ago
Read 2 more answers
Consider the system of equations below. What could be the first step in solving by elimination?
Mrrafil [7]
<h2>Answer:</h2>

The first step would be to multiply the bottom equation by -1 to eliminate x, then you would combine like terms, like 5y + 2y, and 16 + 10.

6 0
2 years ago
Read 2 more answers
5 ft 5 ft 4.5 ft 5 ft h 5 ft Find the area of the rhombus. [?] ft2​
Katyanochek1 [597]

Answer:

56 ft square (Approx)

Step-by-step explanation:

Area of Rhombus= (1/2) * D1* D2 {D1 = 4.5; D2 = 5*5= 25}

= 1/2 * 4.5 * 25

= 56.25

= 56 ft square (Approx)

7 0
2 years ago
Read 2 more answers
What is the Divisor for equivalent fraction ?<br> 4/12=1/3
Lorico [155]
Do do this you divide the largest denominator by the smallest;

12/3 = 4

The answer is 4

Hope this helps! :)
5 0
3 years ago
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