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3 years ago

8

Divided 3/4 divided by 1/5

2 answers:

Slav-nsk [51]3 years ago

8 0

Answer:

3 /4 ÷ 1 /5 = 15 /4 = 3 3/4

Step-by-step explanation:

o-na [289]3 years ago

3 0

Answer:

$\frac{15}{4}$

Can also be written as the following,

$3\frac{3}{4}$

Step-by-step explanation:

First, set up the given problem,

$\frac{3}{4}$ ÷ $\frac{1}{5}$

In order to divide two fractions, one must take the reciprocal of the second fraction and then change the multiplication sign to a division sign. Apply this technique to the given problem,

$\frac{3}{4}$ ÷ $\frac{1}{5}$

$\frac{3}{4} * \frac{5}{1}$

Multiply,

$\frac{15}{4}$

Convert to a mixed number. To convert an improper fraction to a mixed number, one must divide the numerator (number on top of a fraction) by the denominator (number under the fraction bar), write the whole value to the left of the fraction, and the remainder of the division in place of the numerator.

$3\frac{3}{4}$

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3 years ago

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3 years ago

Read 2 more answers

A rancher wants to fence in an area of 1500000 square feet in a rectangular field and then divide it in half with a fence down t

VLD [36.1K]

Answer:

6000 ft

Step-by-step explanation:

Let length of rectangular field=x

Breadth of rectangular field=y

Area of rectangular field= $1500000$ square ft

Area of rectangular field= $l\times b$

Area of rectangular field= $x\time y$

$1500000=xy$

$y=\frac{1500000}{x}$

Fencing used ,P(x)= $x+x+y+y+y=2x+3y$

Substitute the value of y

P(x)= $2x+3(\frac{1500000}{x})$

$P(x)=2x+\frac{4500000}{x}$

Differentiate w.r.t x

$P'(x)=2-\frac{4500000}{x^2}$

Using formula: $\frac{dx^n}{dx}=nx^{n-1}$

$P'(x)=0$

$2-\frac{4500000}{x^2}=0$

$\frac{4500000}{x^2}=2$

$x^2=\frac{4500000}{2}=2250000$

$x=\sqrt{2250000}=1500$

It is always positive because length is always positive.

Again differentiate w.r.t x

$P''(x)=\frac{9000000}{x^3}$

Substitute x=1500

$P''(1500)=\frac{9000000}{(1500)^3}>0$

Hence, fencing is minimum at x=1 500

Substitute x=1 500

$y=\frac{1500000}{1500}=1000$

Length of rectangular field=1500 ft

Breadth of rectangular field=1000 ft

Substitute the values

Shortest length of fence used= $2(1500)+3(1000)=6000 ft$

Hence, the shortest length of fence that the rancher can used=6000 ft

3 0

4 years ago

Heidi has 6 pounds of tomatoes from her garden. She used 3/4 of all the tomatoes to make sauce and gave 2/3 of the rest of the t

iren2701 [21]

Answer:

She gives 16 ounces to her neighbor

Step-by-step explanation:

How much did you use to make sauce

6 * 3/4 = 18/4 =9/2 = 4.5 lbs

That leaves 6-4.5 = 1.5 lbs

She give 2/3 of this to her neighbor

1.5 * 2/3

Changing the decimal to a fraction

3/2 * 2/3 = 1

She gives 1 pound to her neighbor, but we want it in ounces

16 ounces equals 1 pound

She gives 16 ounces to her neighbor

6 0

3 years ago