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2 years ago

HELP FAST I NEED THIS IN 5 MIN 20 POINTS GET IT RIGHT AND I WILL ADD 9

Mathematics

2 answers:

strojnjashka [21]2 years ago

8 0

Yes, 4/8 and 1/2 are equivalent, because 4/8 reduced to simplest form is 1/2.

ANTONII [103]2 years ago

7 0

Yes, they are equivalent. as 4/8 simplified is 1/2.

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Step-by-step explanation:

Subtract 15 - 4.5 = 10.5 10.5 divided by 2.5 equals 4.2, which equals 4 1 /5.

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2 years ago

A store has clearance items that have been marked down by 60%. They are having a sale, advertising an additional 15% off clearan

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Answer: 34%

Step-by-step explanation:

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Price is marked down by 60% with an additional discount of 15% on the marked down price

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2 years ago

Two sides of a triangle are two consecutive number, whose area is 17.5cm². Find the numbers

AveGali [126]

Answer:

The numbers associated with the triangle are 5.437 and 6.437 centimeters, respectively.

Step-by-step explanation:

Two numbers are consecutives, when their difference is equal to 1. The area of the triangle is determined by the following formula:

$A = \frac{1}{2}\cdot n \cdot (n+1)$

$A = \frac{1}{2}\cdot (n^{2}+n)$

$A = \frac{n^{2}}{2}+\frac{n}{2}$

$n^{2}+n = 2\cdot A$

Where $n$ is the shortest length of the triangle, measured in centimeters.

And we get the following second-order polynomial:

$n^{2}+n -2\cdot A = 0$ (1)

If we know that $A = 17.5\,cm^{2}$ , then the shortest length of the triangle is:

$n_{1} = 5.437\,cm$ and $n_{2} \approx -6.437\,cm$

Since length is a positive variable, the only possible solution is:

$n\approx 5.437\,cm$

Then, the numbers associated with the triangle are 5.437 and 6.437 centimeters, respectively.

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2 years ago

What is the value of 0.1561 rounded to the nearest tenth?

Ainat [17]

We have to round the value of 0.1561 to the nearest tenth.

The number after decimal is the number at tenth place. Consider the number to the right of the tenths place and use the number to determine if you will round up or stay the same. Notice that the number to the right of tenth place is more than or equal to 5 or less than 5. If that number is greater than or equal to 5, then the number will round up but if that number is less than 5, then the number will not round up. It will remain same.

Let us consider the given number 0.1561

The number at tenths place is 1

The number after the tenths place is 5 (which is either greater than or equal to 5)

So, the number will round up to 0.2

8 0

3 years ago

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