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3 years ago

How much would a $3500 piano cost if it was on sale for 20% off with the 6% sales tax on the

Mathematics

1 answer:

Bess [88]3 years ago

5 0

I'm not sure if you meant the tax was on the original proce or not, so here's both answers:

Tax on original price: $3010

Tax after sale: $2968

To get the amount off from the sale

3500x.2=700

3500-700=2800

To get the tax

(Tax on original price) 3500x.06=210

(Tax after sale) 2800x.06=168

Add tax onto price

(Tax on original price) 2800+210=3010

(Tax after sale) 2800+168=2968

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Work out the size of angel x. <br><br>

aniked [119]

Answer:

Basic fact:

<em>angles in a point add up to 360</em>

Step-by-step explanation:

20+165+33+90(that is the right angle)+x=360

20+165+33+90=308

308+x=360

-308

x=52

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3 years ago

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Using a pair of compass only construct a triangle ABC such that AB=9cm, angle BAC=60° and angle ABC=45°

Leto [7]

Answer:

AC=5.4 BC=7.2

Step-by-step explanation

180-60-45=75 degree

9/75=AC/45=BC/60

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3 years ago

Which points are generated by the function y = -5x + 2? Check all that apply. (2, 8) (2, -8) (13, 3) (3, -13)

Zanzabum

(2,-8) (3,-13) because if you plug them all in there the only ones that come out right

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3 years ago

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At 82°F, a certain insect chirps at a rate of 61 times per minute, and at 91°F, they chirp 124 times per minute. Write an equati

Ganezh [65]

Answer:

$y=7x-513$

Step-by-step explanation:

Let

x----> the temperature in degrees Fahrenheit

y ---->insect chirping rate in times per minute

we have the ordered pairs

(82,61) and (91,124)

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{124-61}{91-82}$

$m=\frac{63}{9}=7$

step 2

Find the equation of the line

we know that

The equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope

b is the y-intercept

we have

$m=7$ ---> the units are chirps per minute/degree F

take the point (82,61)

substitute and solve for b

$61=7(82)+b$

$61=574+b$

$b=-513$

substitute

$y=7x-513$

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3 years ago

Plzz answer if u know it

liraira [26]

Answer:

A . 60

Step-by-step explanation:

30 x 2 = 60

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2 years ago