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kobusy [5.1K]
3 years ago
11

Are the following proportional? Explain: 3/4 to 9/15

Mathematics
2 answers:
Jet001 [13]3 years ago
4 0
It isn't proportional because 3/4 is proportional to 9/16 not 9/15.
SVEN [57.7K]3 years ago
4 0
No, this is because when you simplify 9/15 you get 3/5, not 3/4.
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The price of a $100 item after successive discounts of 10% and 15% is:
Burka [1]
Hello there,
Actual price = $100
After 10% discount = $100 - (10/100 x 100)
                               = $90
After 15% discount = $90 - (15/100 x 90)
                               = $76.50
Final cost - $76.50

Hope this helps :))


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Answer:

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Step-by-step explanation:

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Andreas93 [3]
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C.

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If p varies directly with T and p =105 when T=400.Find p when T =500
kumpel [21]

Answer:

<h3>p = 131.25</h3>

Step-by-step explanation:

The variation p varies directly with T is written as

p = kT

where k is the constant of proportionality

To find p when T =500 we must first find the formula for the variation

That's

when p = 105 and T = 400

105 = 400k

Divide both sides by 400

<h3>k =  \frac{21}{80}</h3>

So the formula for the variation is

<h2>p =  \frac{21}{80} T</h2>

when

T = 500

Substitute it into the above formula

That's

p =  \frac{21}{80}  \times 500

Simplify

The final answer is

<h3>p = 131.25</h3>

Hope this helps you

7 0
3 years ago
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