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4 years ago

5/8 divided by 1 1/3

Mathematics

2 answers:

ElenaW [278]4 years ago

8 0

(5/8) / (1 1/3) = 0.46875 in decimal form

And 15/32 in fraction form

lesya692 [45]4 years ago

5 0

Answer: 15/32

Step-by-step explanation:

To solve, 5/8 ÷ 1 1/3

First convert the improper fraction to proper fraction, 1 1/3= 4/3

Then rewrite the question as:

5/8 ÷ 4/3

Change the sign to multiplication and find the reciprocal of the second fraction:

5/8 × 3/4

Multiply the numerators: 5 x 3 = 15

Multiply the denominators: 8 x 4 = 32

= 15/32

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4 years ago

Read 2 more answers

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Tpy6a [65]

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2 years ago

The length of a rectangle is (2x –1) units, and the width is (x − 2) units. The area of the rectangle is 20 square units. What i

DedPeter [7]

Length of the given rectangle is 8 units.

Option - D

<u>Solution:</u>

Given that

Length of a rectangle = $(2x-1)\text { units}$

Width of a rectangle = $(x-2)\text{ units}$

Area of rectangle = 20 square units

Need to calculate length of rectangle.

$\text { Formula of area of rectangle }=\text { Length of a rectangle } \times \text { Width of a rectangle }$

Substituting given value of Area of rectangle and expressions for length and width of rectangle in formula, we get

$20=(x-2)(2 x-1)$

On solving above equation for x we get

$\begin{array}{l}{20=x(2 x-1)-2(2 x-1)} \\\\ {\Rightarrow 20=2 x^{2}-x-4 x+2} \\\\ {\Rightarrow 2 x^{2}-5 x+2-20=0} \\\\ {\Rightarrow 2 x^{2}-5 x-18=0}\end{array}$

On splitting the middle term in such a way that product of split terms comes as $2x^2\times -18 = -36x^2$ and summation comes as -5x, we get

$\begin{array}{l}{\Rightarrow 2 x^{2}+4 x-9 x-18=0} \\\\ {=>2 x(x+2)-9(x+2)=0} \\\\ {\Rightarrow(2 x-9)(x+2)=0} \\\\ {\Rightarrow(2 x-9)=0 \text { or }(x+2)=0} \\\\ {\Rightarrow x=\frac{9}{2} \text { or } x=-2}\end{array}$

$\begin{array}{l}{\text { When } x=\frac{9}{2}, \text { length }=(2 x-1) \text { units }=\left(2 \times \frac{9}{2}-1\right)=8 \text { units }} \\\\ {\text { When } x=-2, \text { length }=(2 x-1) \text { units }=(2 \times(-2)-1)=-5 \text { units }}\end{array}$

As length cannot be negative hence we can ignore negative value.

So length is 8 units.

3 0

3 years ago