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omeli [17]
3 years ago
10

I paid $7. 74 in county sales taxes. The tax rate is 3%

Mathematics
1 answer:
makvit [3.9K]3 years ago
8 0

Let those total sales be s. Then 0.03s = $7.74, and s = $7.74 / 0.03

x = $250 : total sales

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Please solve this question. ​
egoroff_w [7]
<h3><u>Answer</u> :</h3>

Let numerator of fraction be x and denominator be y.

∴ Fraction = x/y

★ <u>Part - A</u> :

:\implies\tt\:\dfrac{x\times 4}{y-2}=2

:\implies\tt\:4x=2(y-2)

:\implies\tt\:4x=2y-4

:\implies\tt\:2y=4x+4

:\implies\bf\:y=2x+2\:\:\dots (1)

★ <u>Part</u><u> </u><u>-</u><u> </u><u>B</u> :

:\implies\tt\:\dfrac{x+15}{2y-2}=\dfrac{9}{7}

:\implies\tt\:7(x+15)=9(2y-2)

:\implies\tt\:7x+105=18y-18

From equation (1)...

:\implies\tt\:7x+105=18(2x+2)-18

:\implies\tt\:7x+105=36x+38-18

:\implies\tt\:29x=105-18

:\implies\tt\:x=\dfrac{87}{29}

:\implies\boxed{\bf{x=3}}

:\implies\tt\:y=2x+2

:\implies\tt\:y=2(3)+2

:\implies\boxed{\bf{y=8}}

∴ Fraction = x/y = 3/8

<h3>Hope It Helps!</h3>
5 0
3 years ago
Read 2 more answers
find the equation of the straight line which has a gradient of 3 and passes through the point (-1, 3)
iogann1982 [59]

Answer:

y=3x+6

Step-by-step explanation: 3=3(-1)+b

                                             3=-3+b

                                             +3  +3

                                              6=b

8 0
2 years ago
a plumber laying 500 meters of drain pipe required 20 men of working for 10 days . What length in meters would be laid by 50 men
belka [17]

Answer:

500 meters =20men =10days

To get the factor 500/(20*10)= 5/2 meters/day

For 50 men and 5days we don't know the meters

So we go by 50*(5/2)*5 =625meters

8 0
3 years ago
Hello im in 11th grade, im currently struggling in two classes: chemistry and spanish. Im already in the second semester, and ju
Katarina [22]
For chemistry you would need to get an 84.
For Spanish you would need to get an 82.
Best of luck
7 0
3 years ago
Alan is building a garden shaped like a rectangle with a semicircle attached to one short side. If he has 70 feet of fencing to
viktelen [127]

The dimension that would give the maximum area is 20.8569

<h3>How to solve for the maximum area</h3>

Let the shorter side be = x

Perimeter of the semi-circle is πx

Twice the Length of the longer side

[70-(\pi )x -x]

Length = [70-(1+\pi )x]/2

Total area =

area of rectangle + area of the semi-circle.

Total area =

x[[70-(1+\pi )x]/2] + [(\pi )(x/2)^2]/2

When we square it we would have

70x +[(\pi /4)-(1+\pi)]x^2

This gives

70x - [3.3562]x^2

From here we divide by 2

35x - 1.6781x^2

The maximum side would be at

x = 35/2*1.6781

This gives us 20.8569

Read more on areas and dimensions here:

brainly.com/question/19819849

#SPJ1

7 0
1 year ago
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