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3 years ago

50 is 40%of what number

1 answer:

3 0

50 is 40%of what numberLet's analyze the problem.=> 50 is the 40% of the unknown number, thus we need to solve for that unknown number.To be able to solve for the answer, we need to do the following=> 40% = 40% / 100% = .40=> .40x = 50 , where x is the unknown number.=> x = 50 / .40 => x = 125Thus, the number what we are looking is 125. and 40% of it is equals to 50. Therefore 60% of it is 75.<span>
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A lot is 21 ft by 30 ft. To support a fence, an architect wants an upright post at each corner and an upright post every 3 ft in

Bogdan [553]

What we know:
Lot= 21 x 30ft
Perimeter=2l+2w
Want to put 4 corner post and one post every 3 ft

What we need to find:
How many post we need.

Perimeter=2 (21)+2 (30)=42+60=102ft

102/3=34

34 posts are needed.

6 0

3 years ago

Barrett works at an ice cream shop. The function f(x) represents the amount of money in dollars Barrett earns per gallon of ice

Paha777 [63]

Answer:

$f(g(x))=6x^3} +4$

Step-by-step explanation:

Given:

$f(x)=2x^2+4\\\\g(x)=\sqrt{3x^3}$

Required:

f(g(x))=?

Solution:

let f(g(x))=f(X), where X=g(x)

so $f(X)=2X^2+4$

put X= $g(x)=\sqrt{3x^3}$ , we get

$f(g(x))=2(\sqrt{3x^3} )^2+4$

$f(g(x))=2(\sqrt{3x^3} )^2+4\\\\f(g(x))=2({3x^3} )+4\\\\f(g(x))=6x^3} +4$

5 0

2 years ago

Your help is deeply is appreciated.

MrRa [10]

Answer:

x = 3

Step-by-step explanation:

$\\4x^2-2x=30\\\\x=3\\4(3)^2-2(3)=30\\4(9) - 6 =30\\36 - 6 = 30\\30 = 30 \\\\x=4\\4(4)^2-2(4)=30\\4(16) - 8 =30\\64 - 8 = 30\\56\neq 30$

56 is not equal to 30

6 0

3 years ago

Read 2 more answers

Please please help please ASAP

Vedmedyk [2.9K]

Answer:

VT = 50√3 , PT = 50

Step-by-step explanation:

Given

PV = 100

With reference angle 60°

hypotenuse (h) = 100

perpendicular (p) = ?

Now

Sin 60° = p/h

√3 / 2 = p / 100

p = √3 * 100 / 2

p = 50√3

Also

With reference angle 30°

hypotenuse (h) = 100

perpendicular (p) = ?

sin 30° = p/h

1/2 = p / 100

p = 100 / 2

p = 50

Hope it will help :)

8 0

3 years ago

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ratelena [41]

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answer C......y = -5/2x + (-3)

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3 years ago