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Yuliya22 [10]
3 years ago
11

I need Help ASAP please!!

Mathematics
2 answers:
svetoff [14.1K]3 years ago
6 0

Answer:   The three sides are 15 cm, 25 cm, 30 cm

=====================================================

Explanation:

Let x be some positive real number

The sides are in ratio 3:5:6 which means we can multiply all three sides by x getting 3x:5x:6x

The sides of the triangle are 3x, 5x and 6x. The sides add up to the perimeter 70

3x+5x+6x = 70

14x = 70

x = 70/14

x = 5

With this x value, we can find the three sides

  • 3x = 3*5 = 15
  • 5x = 5*5 = 25
  • 6x = 6*5 = 30

The three sides are 15 cm, 25 cm, 30 cm.

As a check:

15+25+30 = 40+30 = 70

and note how the ratio 15:25:30 reduces to 3:5:6 after dividing all three parts by the GCF 5

Both conditions are satisfied, so we have confirmed our answers.

lapo4ka [179]3 years ago
4 0

Answer:

5

Step-by-step explanation:

(3x) + (5x) (6x) = 70

=     14             = 70

        70/14

=     5

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3 years ago
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2 years ago
Umberto buys a game for $7.89 and some batteries for $5.49. He pays with a $20 bill. Which is the best estimate of change he sho
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The change is the remaining money that is needed to take from the seller so a change of Umberto will be $6.62.

<h3>What is subtraction?</h3>

To subtract in mathematics is to take something away from a group or a number of objects.

The group's total number of items decreases or becomes lower when we subtract from it.

Given that,

Umberto buys a game for $7.89 and some batteries for $5.49.

Total money of buying = 7.89 + 5.49 = $13.38

Now he gives a $20 bill.

Remaining (change) = 20 - 13.38

⇒ $6.62

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For more about subtraction,

brainly.com/question/1927340

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6 0
1 year ago
Lincoln High schools basket ball team won the regional playoffs scoring a total of 60 points, not including free throws. The tea
CaHeK987 [17]

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Step-by-step explanation:

Let x be the number of 2 point baskets made and y be the number of 3 point baskets made

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1) x + y = 26

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2) 2x + 3y = 60

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solve equation 1 for x and substitute in equation 2

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x = 26 - y

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2(26 - y) +3y = 60

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52 -2y +3y = 60

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y = 8

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x = 26 - 8 = 18

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