3 years ago

A group of workers can plant 48 acres in 8 days. What is their rate in acres per day?

Mathematics

1 answer:

kati45 [8]3 years ago

8 0

48/8=6 is the rate per day

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Sandra can type 180 words in 3 minutes. At this rate, how many words can she type in 5 minutes?

mezya [45]

180 divided by 3 = 60

60 x 5 = 300

she can type 300 words in 5 minutes

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3 years ago

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Three of the sides will require fencing and the fourth wall already exists. If the farmer has 116 feet of fencing, what are the

dolphi86 [110]

Answer:

29 ft x 58 ft

Step-by-step explanation:

Let x be the length of each side perpendicular to the wall, and y be the length of the side parallel to the wall.

The amount of wire available is:

$116 = 2x+y\\y=116-2x$

The area of the region is:

$A=xy=x(116-2x)\\A(x)=116x-2x^2$

The value of 'x' for which the derivate of the area function is zero will yield the maximum area:

$A(x)=116x-2x^2\\A'(x) = 116-4x=0\\x=29\ ft$

The value of y is:

$y=116-2*29\\y=58\ ft$

The dimensions of the region with the largest area are 29 ft x 58 ft.

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3 years ago

How many different numbers can be obtained using five binary bits?

forsale [732]

A number composed by 5 digits: in decimal each digit can be 0,1..9 so a 5 digit number can express numbers from 0 to 99999 and they are 10 5 = 100 , 000 . A 5 bit number is something similar but with bits, i.e. binary digits.

Hope this helps ;)

8 0

3 years ago

The distance between the library and the grocery store is 4 centimeters on the map. The actual distance is 12 kilometers. What i

Vsevolod [243]

Answer:

4 centimeters=12 km

1 centimeters = 12÷4

=3 km

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3 years ago

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What is the answer to -6+2R+12R

Alik [6]

Answer:

R=0.42857

Step-by-step explanation:

ac/question, -6+2R+12R=0

14R=6

R= $\frac{6}{14}$

R=0.42857

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3 years ago