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3 years ago

A line passing through which of the following pairs of coordinates represents a proportional relationship?

2 answers:

3 0

(1.25,2.5) and (3.75,7.5)

Whenever there is a proportional relationship, the y values are always double of the x values in order to make a straight line on a graph.

nalin [4]3 years ago

3 0

Answer:

the answer is (1.25, 2.5) and (3.75, 7.5)

Step-by-step explanation:

1. To be a proportional relationship, the ratio between the y-coordinates must be equal to the ratio of the x-coordinates. For example, for the first choice we have:

ratio for x coordinate: 3/2.5 =1.2

ratio for y coordinate: 5.5/5 =1.1

The ratios are not the same and consequently it is not a proportional relationship.

2. The correct answer is (1.25, 2.5) and (3.75, 7.5) because if we check the ratios for the coordinates we get

ratio for x coordinate: 3.75/1.25 = 3

ratio for y coordinate: 7.5/2.5 =3

In this case we can see the ratios are equal, hence we can state it is a proportional relationship.

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3 years ago

A man earned x pesos in 10 days and spent y pesos during each of those days. Write an expression to determine how many pesos he

Vsevolod [243]

Answer: $\dfrac{x}{10}-y$

Step-by-step explanation:

Given : A man earned x pesos in 10 days and spent y pesos during each of those days.

i.e. Total earning in 10 days = x

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We know that

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3 years ago

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NISA [10]

Answer:

Step-by-step explanation:

First, we are decreasing the number so it has to be a decrease.

Next, we divide 7/31 and get around 0.23, which also represents 23 percent.

This only shows that 7 is 23 percent of 31, so we need to find the decrease by seeing the difference of 100 and 23.

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3 years ago

Please help with this 2+4(5-8). step by step

igor_vitrenko [27]

NAMASTE

HERE IS YOUR ANSWER:

2+4(5-8)
We know, the BODMAS (bar, order, multiply, add, subtract) rule. so we will solve it as follows:

➡2+4(-3) (✔ 5-8= -3)

➡2+(-12) (✔ 4(-3)= -12)

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➡ $\boxed{-10}$

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A triangle with a height of 5cm and a base length of 12cm what is the perimeter

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Step-by-step explanation:

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