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docker41 [41]
3 years ago
13

Why are the solutions to the proportions 50/x =10/20 and 10/50=20/x the same

Mathematics
2 answers:
storchak [24]3 years ago
7 0

Answer:

because both result in the equation 10x=1000 which simplifies to x=100.

ratelena [41]3 years ago
5 0
With cross multiplication you can find that they are the same. In both equations, x would be 100. 
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Please help! Please help!! Please help!!!​
klasskru [66]

Answer:

36 is the answer to the questions

4 0
1 year ago
You roll a fair six sided die twice. The first roll shows a six and the second row shows 3
vazorg [7]

Answer:

4/12 simplified to 1/3 of rolling 2 times.

Step-by-step explanation:

3 0
2 years ago
As an estimation we are told 5 miles is 8 km.<br> Convert 40 miles to km
k0ka [10]

Answer:

64.3738

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Please answer this with explanation. Please I really am struggling. I will mark you brainalist. Please solve it Please
Hatshy [7]

Answer:

13, 11, 4, 16, 6, 22

Step-by-step explanation:

<em>Let the second digit be x and the last digit be y</em>

Given:

  • Data set: 13, x, 4, 16, 6, y
  • Mean = 12
  • y = 2x or x = 2y

The mean of the data is the average. The average can be calculated by determining the sum of the terms and dividing it by the total digits.

\implies \text{Mean of data:} \ \dfrac{13 + x + 4 + 16 + 6 + y}{6} = 12

Let us substitute the value of y (2x) in the data.

\implies \dfrac{13 + x + 4 + 16 + 6 + 2x}{6} = 12

Now, add all the terms in the data and simplify.

\implies \dfrac{39 + x +2x}{6} = 12

\implies \dfrac{39 + 3x}{6} = 12

Distribute the denominators and simplify.

\implies \dfrac{39}{6} + \dfrac{3x}{6}  = 12

\implies  \dfrac{13}{2} + \dfrac{x}{2}  = 12

\implies  6.5 + \dfrac{x}{2}  = 12

Subtract 6.5 both sides and simplify.

\implies  6.5 + \dfrac{x}{2}  - 6.5 = 12 - 6.5

\implies \dfrac{x}{2} = 5.5

Use cross multiplication and simplify.

\implies x= 5.5 \times 2

\implies  x= 11

To determine the value of "y", simply substitute the value of "x" into the expression that represents the value of "y".

\implies y = 2x

\implies y = 2(11)

\implies y = 22

When the x and y values are substituted in the data, we get;

  • ⇒ 13, 11, 4, 16, 6, 22

Therefore, the data is 13, 11, 4, 16, 6, 22.

8 0
2 years ago
dianna made several cakes yesterday. each cake required 2 2/3 cups of flour. all together, she used 13 1/3 cups of flours. how m
Kay [80]

13 1/3 divided by 2 2/3

= 40/3 /8/3= 5

Hope that helps!


3 0
3 years ago
Read 2 more answers
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