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Bumek [7]
3 years ago
15

city has 3 new houses for every 7 old houses. If there are 27 new houses in the city, how many old houses are there?

Mathematics
1 answer:
Eddi Din [679]3 years ago
7 0
Divide 7 by 3 to multiply it by 27 to get 12.5 meaning only 12 houses are there
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Lines b and c are parallel<br><br> Which pairs of angles are supplementary? Select all that apply
Arisa [49]

Angles 2 and 4, and Angles 3 and 5 are supplementary. Supplementary means two angles add up to 180 degrees (aka a straight line).

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Please help
AysviL [449]

The coordinates (-2, -2.5) and  (-1, -1) are satisfying the equation so pairs (A) and (B) will be correct.

<h3>What is the equation?</h3>

There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.

More than one variable may be present inside a linear equation. An equation is said to be linear if the maximum power of the variable is consistently unity.

A formula known as an equation uses the same sign to denote the equality of two expressions.

In another word, the equation must be constrained with some constraints.

Given the equation,

3x= 2y - 1

To know which coordinate satisfies the equation we need to put one by one all three coordinate,

Coordinate (A) ⇒ A) (-2, -2.5)

3(-2) = 2(-2.5) - 1 ⇒ -6 = -6 so it is satisfying.

Coordinate (B) ⇒ B) (0, -0.5)

3(0) = 2(-0.5) - 1 ⇒ 0 ≠ -2 so it is not satisfying.

Coordinate (C) ⇒C) (-1, -1)

3(-1) = 2(-1) - 1 ⇒ -3 = -3 so it is also satisfying.

Hence "The pair (-2, -2.5) and  (-1, -1) are satisfying".

For more about the equation,

brainly.com/question/10413253

#SPJ1

3 0
2 years ago
PLEASE PLEASE HELP IVE BEEN STUCK ON THIS FOR TOO LONG
stellarik [79]

Answer:

10

Step-by-step explanation:

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PLZ HELP IN QUIZ
nikklg [1K]

Answer:

1. Which statement would prove there is a. 2. There are two rectangles. Rectangle WXYZ has a length of 21 to two sides of another triangle, then the Which statement will always be true of the 6. The diagram shows the side lengths of two similar triangles. entre 15 km.

Step-by-step explanation:

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line passes through the point (0, –1) and has a positive slope. Which of these points could that line pass through? Check all th
sammy [17]

Answer:

Points passing though are (12, 3),(–2, –5) and (1, 15)

Step-by-step explanation:

For a line passing through (x₁,y₁) and (x₂,y₂) slope is given by \frac{y_2-y_1}{x_2-x_1}.

Here we have one point (0, –1), we need to check slope of all the points given.

(12, 3)

          m=\frac{3-(-1))}{12-0}=\frac{1}{4}>0

(–2, –5)

          m=\frac{-5-(-1))}{-2-0}=\frac{-4}{-2}=2>0

(–3, 1)

         m=\frac{1-(-1))}{-3-0}=\frac{2}{-3}=-\frac{2}{3}

(1, 15)

        m=\frac{15-(-1))}{1-0}=\frac{16}{1}=16>0

(5, –2)

        m=\frac{-2-(-1))}{5-0}=\frac{-1}{5}=-\frac{1}{5}

Points with positive slope are (12, 3),(–2, –5) and (1, 15)

8 0
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