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Zanzabum
3 years ago
13

The price of a computer was decreased by 10% to £504. What was the price before the decrease

Mathematics
1 answer:
katovenus [111]3 years ago
7 0

Answer:

Step-by-step explanation:

100-10  :  100

90    : 100

504  : x

x=540x100/90

x=50400/90

x=560

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3 years ago
Use the value of the first integral I to evaluate the two given integrals. I = integral^3_0 (x^3 - 4x)dx = 9/4 A. integral^3_0 (
Troyanec [42]

Answer:

A) -9/2

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C) -9/2, same as A)

Step-by-step explanation:

We are given that I=\int_0^3 x^3-4x dx=9/4. We use the properties of integrals to write the new integrals in terms of I.

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B) \int_3^0 4x - x^3 dx=-\int_0^3 (4x-x^3) dx=\int_0^3-(4x-x^3) dx=\int_0^3 x^3-4x dx=I=9/4. Here we used that reversing the limits of integration changes the sign of the integral.

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4 0
3 years ago
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Brrunno [24]
Hopes this helps:

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7 0
3 years ago
Read 2 more answers
This is me and I am proud of my 15 year old self
almond37 [142]

Answer:

good

Step-by-step explanation:

thx for the points :)

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777dan777 [17]

Answer:

<u><em>x = 80</em></u>

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Step-by-step explanation:

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We solve and get 2x = 180-20

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3 0
3 years ago
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