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Anni [7]
3 years ago
8

You spent ¼ of your money on lunch.After lunch you gave half of what you had left to the friend,then you spent $3 on a boon. You

have $4¼ left. How much money did you have before lunch.
Please explain this. with answer​
Mathematics
2 answers:
frutty [35]3 years ago
5 0

Answer:

total \: you \: have \:  = x \\after\: lunch \: you \: have \:   = \frac{3x}{4}  \\ a fter \: giving \: to \: friend =  \frac{3x}{8}  \\  after \: spending \: for \: boon =  \frac{3x}{8}  - 3 = 4 \frac{1}{4}  \\  \frac{3x - 8 \times 3}{8}  =  \frac{17}{4}  \\  \frac{3x - 24}{2}  = 17 \\ 3x - 24 = 17 \times 2 \\ 3x - 24 = 34 \\ 3x = 34 + 24 \\ 3x = 58 \\ x =  \frac{58}{3}  \\ x = 19.33 \\ thank \: you

kvv77 [185]3 years ago
3 0
Answer: $20

Why: First add 3 to 4.25 to get 7.25, then you double it getting 15. You then times 15 by 1/3 to get 5 and then you times 5 by 4 to get your answer of $20.
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How do i graph q is greater than -1.3 on a number line
kompoz [17]

Answer:

an open circle on -1.3 on the line and draw a line to the right with an arrow.

Step-by-step explanation:

On your number line, draw an open circle on -1.3 and then draw a line on the number line going to the right and ending with an arrow at the end.  The open circle means that it is that starting point, but is not equal to it.

5 0
4 years ago
Is this equation 4( − 11) = 15 − 4a one solution a no solution or more that one solution
Murljashka [212]

Answer:

no solution i think

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Step-by-step explanation:

8 0
4 years ago
4 students is ____% of 20 students
Rudiy27

Answer:

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Step-by-step explanation:

20 * 20% = 4

or you can change it to a decimal

20 * .2 = 4

hope this helped! :)

3 0
3 years ago
Find the volume of the sphere.
Volgvan

Step-by-step explanation:

v=4/3*π*r^3

v=4/3*22/7*(1/2)^3

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4 0
3 years ago
If
arlik [135]

Given:

In a right angle triangle θ is an acute angle and \tan\theta =\dfrac{3}{5}.

To find:

The value of \cos \theta.

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In a right angle triangle,

\tan \theta=\dfrac{Perpendicular}{Base}

We have,

\tan\theta =\dfrac{3}{5}

It means the ratio of perpendicular to base is 3:5. Let 3x be the perpendicular and 5x be the base.

By using Pythagoras theorem,

Hypotenuse=\sqrt{Perpendicular^2+base^2}

Hypotenuse=\sqrt{(3x)^2+(5x)^2}

Hypotenuse=\sqrt{9x^2+25x^2}

Hypotenuse=\sqrt{34x^2}

Hypotenuse=x\sqrt{34}

In a right angle triangle,

\cos \theta=\dfrac{Base}{Hypotenuse}

\cos \theta=\dfrac{5x}{x\sqrt{34}}

\cos \theta=\dfrac{5}{\sqrt{34}}

Therefore, the value of \cos \theta is \dfrac{5}{\sqrt{34}}.

8 0
3 years ago
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