3 years ago

Fill in da boxesnot part of the question

1 answer:

7 0

The first box is 3 and the second is 4

Explanation
When dividing fractions you keep change and flip so in this case you would keep one half, change the division sign to multiplication, and flip the numerator with the denominator making it 3/2 . So the problem would be 1/2x3/2 giving you the product 3/4 or .75.

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You have a 1200-foot roll of fencing and a large field. you want to make two paddocks by splitting a rectangular enclosure in ha

romanna [79]

Let width = w
Let length = l
Let area = A
3w+2l=1200
2l=1200-3w
l=1200-3/2
A=w*l
A=w*(1200-3w)/2
A=600w-(3/2)*w^2
If I set A=0 to find the roots, the maximum will be at wmax=-b/2a which is exactly 1/2 way between the roots-(3/2)*w^2+600w=0
-b=-600
2a=-3
-b/2a=-600/-3
-600/-3=200
w=200
And, since 3w+2l=1200
3*200+2l=1200
2l = 600
l = 300
The dimensions of the largest enclosure willbe when width = 200 ft and length = 300 ft
check answer:
3w+2l=1200
3*200+2*300=1200
600+600=1200
1200=1200
and A=w*l
A=200*300
A=60000 ft2
To see if this is max area change w and l slightly but still make 3w+2l=1200 true, like
w=200.1
l=299.85
A=299.85*200.1
A=59999.985

8 0

4 years ago

When does the expression below equal

SIZIF [17.4K]

Answer: n(7)+3=10
Explanation: 7+3 equals 10

4 0

3 years ago

Suppose you toss a 6-sided die 40 times, with 14 tosses landing on the five. What percentage of the tosses would be fives?

Alex777 [14]

$\dfrac{14}{40}\cdot100\%=35\%$