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4 years ago

45% change as decimal number

Mathematics

2 answers:

vfiekz [6]4 years ago

6 0

Answer:

0.45

Step-by-step explanation:

percent means out of a hundred, hence

45% = $\frac{45}{100}$ = 0.45

kkurt [141]4 years ago

5 0

Let 100 be the total amount 45=45 percent Changing 45 into decimal 45/100= 0.45.

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BabaBlast [244]

Answer:

+ 64

Step-by-step explanation:

Given,

M = 2

E = 64

To find : V = ?

V = + 2E/M

V = + 2 x 64 / 2

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Let f(x)=3x+4 and g(x)= 5-x. Find (g o f)(6)

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1. Substitute the function f(x) into x in g(x)

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3 years ago

Plz help me if u do u a good person

Nimfa-mama [501]

Answer:

f(x)=-2x+9

f(4)+3=?

let x equal to 4

f(4)=-2(4)+8

f(4)=-8+9=+1

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then add 3 to f(4)

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3 years ago

The raised vegetable garden in Susan's yard is in the shape of a rectangular prism with a volume of 48 cubic feet and a height o

Anna11 [10]

The correct question is
The raised vegetable garden in Susan's yard is in the shape of a rectangular prism with a volume of 48 cubic feet and a height of 3/4 foot. The base of the rectangular prism is not a square and the width is greater than 2 feet. What is the length and width of the rectangular prism?

let
x-------> the length of the base of the rectangular prism
y-------> the width of the base of the rectangular prism

we know that
volume of the prism=area of the base*height
volume=48 ft³
height of the prism=3/4 ft

area of the base=volume/height--------> 48/(3/4)---> 48*4/3----> 64 ft²

area of the base=64 ft²
area of the base=x*y
64=x*y--------> equation 1

y=x+2--------> equation 2

substitute equation 2 in equation 1
64=x*[x+2]-----> 64=x²+2x------> x²+2x-64=0

using a graph tool----> to resolve the second order equation
see the attached figure

the solution is
x=7.062 ft
y=x+2-----> y=7.062+2-----> y=9.062 ft

the answer is
the length of the base of the rectangular prism is 7.062 ft
the width of the base of the rectangular prism is 9.062 ft

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