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Evgen [1.6K]
3 years ago
9

Play some pains 1/4 of the area of his living room walls,w, on Monday. On Tuesday, he paints twice as much as he painted on Mond

ay. Write an expression to find the remaining unpainted area
Mathematics
1 answer:
Lemur [1.5K]3 years ago
6 0

Answer:

X = 1 - (1/4) - 2 * (1/4)

Step-by-step explanation:

The equation to be raised must take into account what is painted on Monday and Tuesday. First consider the wall as a unit, that is to say painting the entire wall (100%) is equivalent to 1. Therefore the equation would be the following:

Let X be the unpainted part:

<em>X = 1 - (1/4) - 2 * (1/4) </em>

X = 1 - (1/4) - (1/2)

Now, if we solve this, we have that 0.25, therefore 25% or 1/4 is left to be painted on the wall.

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3 years ago
20 pounds to 16 pounds is what present
ExtremeBDS [4]

Answer:

Decreased by 20%.

16 lbs is 80% of 20 lbs.

Step-by-step explanation:

\frac{y}{100} :\frac{16}{20}

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6 0
3 years ago
Read 2 more answers
Precalc help needed, find g ° f!
Nezavi [6.7K]

Answer:

g o f = -[f(x)]² + 3 = -(|x|)² + 3 = -x² + 3 = g(x)

Step-by-step explanation:

g o f = g [ f(x) ]

This means replace the x of g(x) with f(x):

g o f = -[f(x)]² + 3 = -(|x|)² + 3

As x² ≥ 0 for any value of x (whether it be positive or negative), then -(|x|)² + 3 = -x² + 3 = g(x)

So g o f = g(x)

8 0
2 years ago
<img src="https://tex.z-dn.net/?f=%20%5Clarge%20%5Cred%7B%5Cfrak%7B%20Question%7D%7D" id="TexFormula1" title=" \large \red{\frak
lbvjy [14]

Answer:

\sf \:  \fbox{Option C) \: The  salary of B is 6000₹}

Step-by-step explanation:

Let the salary or A is x and salary of B is y.

now,

Condition one,The sum of 3/4th of A’s salary and 5/3rd of B’s salary is ₹16,000.

writing above statement in equation form,

\sf \frac{3x}{4}  +  \frac{5y}{3}  =  16000

Multiplying above equation with twelve,

\sf \frac{3x}{4}  +  \frac{5y}{3}  =  16000 \\ \sf \frac{12 \times 3x}{4}  +  \frac{12 \times 5y}{3}  =  16000 \times 12  \\  \sf  \fbox{9x + 20y = 192000} \rightarrow eq. 1

and condition two,

The difference of their salaries is ₹2000

\sf \: x - y = 2000

Multiplying above equation with 20

\sf \fbox{\: 20x -20y = 40000} \rightarrow eq.2

On adding equation 1 and equation 2,

\sf9x +  \cancel{20y} = 192000 \\ \sf 20x - \cancel{20y} = 40000 \\     \hline  \sf 29x  + 0y = 232000 \\  \sf x =  \frac{232000}{29}  \\ \sf \:  \fbox{x = 8000₹}

Substituting the value of x in,

\sf \: x - y = 2000 \\ \sf \: 8000 - y = 2000 \\ \sf \:  y = 8000 - 2000 \\ \sf  \fbox{y = 6000₹}

\sf \:  \fbox{The  salary of B is 6000₹}

<em><u>Thanks for joining brainly community!</u></em>

5 0
2 years ago
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