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Hitman42 [59]
2 years ago
13

The perimeter of a triangle is 90 cm.

Mathematics
2 answers:
harkovskaia [24]2 years ago
4 0
Can you work out what one share is
If you don’t know comment
salantis [7]2 years ago
3 0

Let's call one ratio = x

So, the sides are 3x, 5x and 7x respectively.

Since the perimeter is 90 cm, the sum of 3 sides = 90 cm

-> 3x + 5x + 7x = 90 cm

-> 15x = 90cm
-> x = 6cm.

So, the 3 sides are 3x6, 5x6 and 7x6 -> 18,30 and 42.

Recheck : 18 + 30 + 42 = 90

18:30:42 = 3:5:7 (all divided by 6)

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How to do this and the answers.
ANEK [815]

Answer:

I'm gonna estimate about 240 miles one way

Explanation:

You have a guide on the bottom right-hand corner of the map that tells you how many miles per that amount of distance. As you can see it is split off into tiles incremented by 30. What you do is take a ruler and measure that guide. For example, let's say the map is 9.5cm and the guide is 2cm per 60 miles. The next thing I would do is to measure the distance in centimeters of the physical map between point a and point b which is 8cm. Finally, I convert the centimeters into miles which is (8/2)*60 = 240.

8 0
3 years ago
Bryan and Kevin were training for a big
Anastasy [175]

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7 0
3 years ago
Read 2 more answers
Santa has 27 girl elves and 18 boy elves Santa needs them to stand in equal rows with the same amount of girls and boys in each
Margaret [11]

Answer:

9

Step-by-step explanation:

To know the greatest common factor for the boys and girls row:

Obtain the greatest common factor of 27 and 18

Factors of :

27 : 1, 3, 9, 27

18 : 1, 2, 3, 6, 9, 18

Hence, the greatest factor common to both values (27 and 18) is 9

Hence, the greatest common factor between girls and boys row is 9

7 0
3 years ago
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Vilka [71]
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3 0
3 years ago
100 points + Brainy<br><br> Math help please
aev [14]

Answer:

Q = -6

Step-by-step explanation:

To find the answer to this, you first must multiply the first function by 2:

2 x (x - 3y = 4)

2x - 6y = 8

Which then means that the second function is the same. This means that to find Q you need to find the number that changed +Qy into -6:

2x - 6y = 8

2x + Qy = 8

The 2x's cancel out, and then remove the equals and the 8:

-6y = Qy

<h3>So Q must be -6</h3>
<h2>Hope this helps!</h2>
5 0
4 years ago
Read 2 more answers
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