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Romashka [77]
3 years ago
5

Joan can mow 6 acre field in 2 hours. how long would it take her to mow a 3 acre field

Mathematics
2 answers:
Citrus2011 [14]3 years ago
5 0
One hour. if he mows 6 acres in 2 hours, mowing half as many would take half the time.
GaryK [48]3 years ago
3 0
6/2 Changed into a unit rate is 3/1 so joan can mow 3 acres in 1 hour
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I can't get the answer lol
Gelneren [198K]

Answer:

-7/4

Step-by-step explanation:

Recall that slope, m, is defined as the ratio rise to run:  rise/run.

Note that if we start at x = -2 (an arbitrary choice), and move 6 units to the right, we end up at x = 4.  This is the 'run.'  Simultaneously, y starts at 1 and decreases to - 6, a change of -7.  

Thus, the slope of the line through these two points is m = rise/run = -7/4

6 0
2 years ago
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vagabundo [1.1K]

Answer:

\frac{3}{28}

Step-by-step explanation:

Probability (P) is calculated as

P = \frac{requiredoutcome}{count}

The first required outcome is a red sweet from a total of 3 + 5 = 8

P( red) = \frac{3}{8}

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P( second red ) = \frac{2}{7}

P( red and red ) = \frac{3}{8}  × \frac{2}{7} = \frac{6}{56} = \frac{3}{28}

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3 years ago
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frez [133]

Answer:

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Step-by-step explanation:

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3 years ago
What are the solutions to m^2 – 9 = 0? a. m = –9 and m = 0 b. m = –3 and m = 3 c. m = –3 d. m = 9
marysya [2.9K]
2 ways
zero product property
easy way

zero product
factor perfect square
m^2-3^2=0
(m-3)(m+3)=0
set each to zero
m-3=0
x=3

m+3=0
m=-3

m=-3 or 3

easy way
add 9 to both sides
m^2=9
sqrt both sides remember to take postive and negative roots
m=+/-3
m=-3 or 3


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C. So he can find a job that doesn’t include writing
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