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Stels [109]
3 years ago
6

The lengths of the sides of a triangle are in the extended ratio 5 ?: 9 ?: 10. The perimeter of the triangle is 48 cm. What are

the lengths of the? sides?
Mathematics
2 answers:
alexandr402 [8]3 years ago
6 0
A=10, B=18, C=20 are the lengths of the sides
Burka [1]3 years ago
5 0

Answer:

The correct answer is: a = 10 cm, b = 18 cm and c = 20 cm

Step-by-step explanation:

We will use triple proportion:

a : b : c = 5 : 9 : 10     from which is:

a = 5 k , b = 9 k and c = 10 k  where k is coefficient of proportion.

Formula for perimeter is:

P = a + b + c

When we replace value for a = 5 k , b = 9 k and c = 10 k in the formula for P we get:

5 k + 9 k + 10 k = 48  => 24 k = 48 => k = 48/24 = 2

Finally we get:

a = 5 · 2 = 10 cm

b = 9 · 2 = 18 cm

c = 10 · 2 = 20 cm

God with you!!!

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Vivian charges $4 for bracelets and $5 for earrings.
emmasim [6.3K]

Answer:

Use the slope-intercept form  

y = m x + b

to find the slope  m .

m = −  \frac{4}{5}

8 0
3 years ago
How do you solve this
fiasKO [112]
(((x + y) / 3) + (1 / x)) / (5 + (15 / x))
The best way is to make it one fraction.
Multiply by ((3x/3x) / (3x/3x)) to remove the other fractions.
((x(x + y)) + 3(1)) / (5(3x) + 3(15))
(x^2 + xy + 3) / (15x + 45)
Then factor to simplify
(x^2 + xy + 3) / (3(x + 15))



4 0
3 years ago
Chrissy wants to spend at most $45 on dinner. If she bought an entree for $20 and she wants to buy mini appetizers for $3 each,
Sever21 [200]

Answer:

Step-by-step explanation:

Chrissy can buy 8 mini appetizers.......because

45 - 20 = 25

25 divide 3 = 8.3333333333333 so the most she can buy is 8..

:)

8 0
3 years ago
Can you please help me with this
Vitek1552 [10]

Answer:

log9

Step-by-step explanation:

Using the rules of logarithms

logx + logy = log(xy)

logx - logy = log(\frac{x}{y})

logx^{n} ⇔ nlogx

Given

2(log18- log3) + \frac{1}{2}log\frac{1}{16}

= 2(log(\frac{18}{3} ) ) + log(\frac{1}{16}) ^{\frac{1}{2} }

= 2log6 + log\frac{1}{4}

= log6² + log\frac{1}{4}

= log36 + log\frac{1}{4}

= log( 36 × \frac{1}{4} )

= log9

5 0
3 years ago
What is the constant proportionality for 3 and 9
Olegator [25]
The answer is 27. because 9 times 3 =27 and 3 times 9 = 27. so they are both constant of proportionality.
5 0
3 years ago
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