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zheka24 [161]
3 years ago
10

I need help with question 7, also brainliest answer, and a thanks ;D

Mathematics
1 answer:
Dimas [21]3 years ago
4 0
I think the answer is D.
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In the equation, which is true about the value of x? 4(2x + 3) = x(3 + 5) + 12
Dmitrij [34]

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3 years ago
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Can someone please help
USPshnik [31]

Answer:

-40

Step-by-step explanation:

Since x is 10 you need to multiply 10*-4 which equals -40.

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F) The marked price of a radio is 25 % above the selling price and the cost pr
Ostrovityanka [42]

Answer:

See explanation below.

Step-by-step explanation:

Let's say, x represents the sale price of radio.

Then the marked price of the radio is 1.25x

The cost price of the radio is (1.25x)(0.70)

The discount is simply 25% because the radio is being sold at 25% less then the marked price.

The gain percent is given as:

\frac{x-1.25x\times \:0.70}{x}\times 100\\\\=12.5\%

The radio is being sold at 12.5% gain.

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8 0
3 years ago
The weight of 120 books is 36kg, find the weight per book
hodyreva [135]

Answer:

0.3kg

Step-by-step explanation:

Since the weight of 120 books is 36kg, the weight per book will be:

= 36kg / 120

= 0.3kg

4 0
2 years ago
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