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3 years ago

A shop advertises 20% off its prices in a sale.

Mathematics

2 answers:

sdas [7]3 years ago

6 0

Answer:

£45

Step-by-step explanation:

Say the original price is x. When we take 20% off, that's basically multiplying x by 20% and then subtracting that product from the original price, which is x:

x - 20% * x = 80% * x = 0.8x

Now, this equals £36, so we just set them equal:

0.8x = 36

Dividing by 0.8 from both sides, we get:

x = £45

Thus, the answer is £45.

harina [27]3 years ago

6 0

Answer:

£43.2

Step-by-step explanation:

before discount the price was

120%×36

=£43.2

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Kazeer [188]

Answer:

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Step-by-step explanation:

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3 years ago

Write an equation in standard form of the hyperbola described.

marishachu [46]

Check the picture below, so the hyperbola looks more or less like so, so let's find the length of the conjugate axis, or namely let's find the "b" component.

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2 years ago

How do you solve this compound inequality???? Please show work!!! Thanks!!

svet-max [94.6K]

5n - 1 < -16

Add 1

5n < -15

Divide

n < -3

n is less than -3

-3n - 1 < 8

add 1

-3n < 9

divide by -3

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3 years ago

Help!!!!!!!!!find the equation of the linear function q(16)=1 that is parralel to f(x)=1/3x+39

kkurt [141]

Answer:

$q(x)= \frac{1}{3} x -\frac{13}{3}$

Step-by-step explanation:

So you have (16, 1)

When two linear functions are parallel, they have the same slope.

So function q also has a slope of 1/3x. You have a set of points so you can plug them in a slope intercept equation to find b.

y= mx+b

m= slope

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1= 1/3(16) +b

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so then, $y= \frac{1}{3} x -\frac{13}{3}$

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