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posledela
2 years ago
13

How do you tell wether the ratios form a proportion 8/24 5/15

Mathematics
1 answer:
NeTakaya2 years ago
3 0
You can cross multiply if it is equal to the same number it would be proportional.
8/ 24 5/15      8*15 = 5*24          120 = 120
Since they both sides are equal this proportion should be proportional.

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5 0
3 years ago
If you can spare a answer please?
inn [45]

Step-by-step explanation:

the perimeter = 17+19+21+33+27=117 cm

8 0
3 years ago
Read 2 more answers
1. What is AD/AB in simplest form
Step2247 [10]
This is the concept of algebra: The answers to the questions will be as follows:
1. What is AD/AM in the simplest form:
AD/AB is the ratio of AD to AB. This will calculated as follows:
AD=9 units
AB=3 units
thus:
9/3=3
Hence, we conclude that the answer is D. 3

2] What is slope of BE/ slope of AE in simplest form:
slope=(Δy-axis)/(Δx-axis)
slope of AE
=(5-0)/(4-0)
=5/4
slope BE
slope=(5-0)/(4-3)=5/1=5
therefore the ratio of the two slope will be:
BE/AE
=5/(5/4)
=4
The answer is A.4

3. What is the value of x in the proportion (x-1)/5=(4x+2)/35?
To get the value of x we solve the above proportion:
(x-1)/5=(4x+2)/35
35(x-1)=5(4x+2)
35x-35=20x+10
putting like terms together we get:
35x-20x=10+35
15x=45
dividing both sides by 15
x=45/15
x=3
Hence the answer is B.3

4. What is the value of x in the proportion:
(x+1)/(x+3)=15/21
to get the value of x we solve the above:
first we begin by cross multiplying the proportion, this will give us:
21(x+1)=15(x+3)
21x+21=15x+45
putting like terms together we get:
21x-15x=45-21
6x=24
dividing both sides by 6 we get
x=4
∴ x=4

5. The lengths of the sides of a triangle are in extended ratio 3:10:12. The perimeter is 400 cm. What is the length of the longest side in cm.
solution:
Here we introduce the variable x such that the perimeter is:
3x+10x+12x=400
25x=400
x=400/25
x=16
The longest side will be:
12×16=192 cm


6 0
3 years ago
Read 2 more answers
A) Goats that weigh exactly 50 or 60 pounds fall into two classes.
Jobisdone [24]
<span>A) Goats that weigh exactly 50 or 60 pounds fall into two classes. would be the right answer</span>
3 0
3 years ago
A plane has fees for 420 passengers 15% of the seats are empty how many passengers are on the plane​
serious [3.7K]

Answer:

357 passengers

Step-by-step explanation:

\frac{x}{420}=\frac{85}{100} (The \frac{85}{100} is 85% of the 100% people because 15% is missing)

When you cross-simplify you get: \frac{x}{21}=\frac{85}{5} which is \frac{x}{21}=17

Finally, multiply 17 by 21 to get x.

Therefore, x=357

3 0
2 years ago
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