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zalisa [80]
4 years ago
6

Are 3/7 and 8/28 proportional?

Mathematics
1 answer:
Eva8 [605]4 years ago
5 0

Answer:

No

Step-by-step explanation:

If you make them have the same denominator, 3/7 would be 12/28

This is because you multiplay both the numerator and denominator by 4. This means they are not proportional

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What is 1 2/5x =7 because i really need help<br><br>​
astraxan [27]

(1 2/5)(x)=7

Simplify both sides of the equation.

7/5x=7

Multiply both sides by 5/7.

(5/7)*(7/5x)=(5/7)*(7)

x=5

3 0
3 years ago
During a sale, a store offered a 15% discount on a tablet computer that originally sold for $460. After the sale, the discounted
Lady bird [3.3K]

The percent of the original price after markup is 98%

<h3>Mark up and discounts</h3>

Given the following parameters

  • Original price of tablet = $460

If during a sale, a store offered a 15% discount on a tablet, the new price after discount will be:

New price = 0.85 * 460

  • New price = $391

If the tablet computer was marked up by 15% after the discount, then the price after the markup is given as:

  • Price after markup = 1.15 * 391
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To get the required percent;

x% of 460 = 450
x% = 450/460

x% = 0.978

x = 98%

Hence the percent of the original price after markup is 98%

Learn more on discount here; brainly.com/question/1548141

6 0
3 years ago
The solution of 5(x+2) – 3x = 2(x – 5)
Burka [1]

Answer:

Step-by-step explanation:

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2x + 10 = 2x - 10

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no solution

7 0
3 years ago
Suppose that when a skunk sprays, the odor has a half-life stink potency of
Yuliya22 [10]

Answer:

12.5% Potency

Step-by-step explanation:

8 x 3 = 24 hours in 1 day so 3 half lifes would progress in 24 hours.

100% Hour 0 Spray (Half Life 0)

50% Hour 8 Spray (Half Life 1)

25% Hour 16 Spray (Half Life 2)

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3 years ago
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