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andreyandreev [35.5K]
3 years ago
6

In a sale all prices are reduced by 10%.What is the sale price of an article marked $40​

Mathematics
2 answers:
Alik [6]3 years ago
8 0
Answer: $4

Explanation: 40 x 0.1 (aka10%) = $4
Marina86 [1]3 years ago
7 0

Answer:

Step-by-step explanation: 10% of 40 pounds= 4 pounds

10%= 4 pounds

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Given the numbers c = –3 and d = 4, which statement is true? A. |–c| = 3 and |–d| = –4 B. |–c| = 3 and –|d| = –4 C. –|c| = –4 an
kirill [66]

<u>Answer:</u>

D. |–c| = 3 and –|d| = 4

<u>Step-by-step explanation:</u>

We are given these values of two variables and asked which of the statements in the given options is true:

c = –3 and d = 4

In mathematics, we know that the absolute value or modulus of a real number x is the non-negative value of x despite of whatever sign it has, positive or negative.

Therefore, the modulus of c  |–c| = 3 and modulus of  –|d| = 4 so option D is the correct one.

5 0
3 years ago
No link need right answer 100 points
maks197457 [2]

Answer:

13 1/8

Step-by-step explanation:

3/2* 7/2*5/2

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= 13 1/8

8 0
3 years ago
How much heat in kJ is released when nitrogen and hydrogen react as below to form 100.g ammonia heat equals-92.2kj
tresset_1 [31]

100g of ammonia releases 271.18 kJ of heat.

<u>Explanation:</u>

Given:

N₂ reacts with H₂

The reaction is:

2N₂ + 3H₂ → 2NH₃ + 92.2 kJ

According to the balanced reaction:

2 X 17g of ammonia releases 92.2 kJ of heat

34g of ammonia releases 92.2 kJ of heat

100g of ammonia will release = \frac{92.2}{34} X 100 kJ of heat

                                                 = 271.18 kJ

Therefore, 100g of ammonia releases 271.18 kJ of heat.

8 0
3 years ago
If A:B=1/2:1/3, and B:C is 1/2:1/3, what is A:B:C?
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Answer:

Step-by-step explanation:

C)3:2:6

6 0
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Nataliya [291]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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