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3 years ago

X+4=3x+9 how to solve this?

Mathematics

2 answers:

Basile [38]3 years ago

8 0

Answer:

x = - $\frac{5}{2}$

Step-by-step explanation:

x + 4 = 3x + 9 ( subtract x from both sides )

4 = 2x + 9 ( subtract 9 from both sides )

- 5 = 2x ( divide both sides by 2 )

- $\frac{5}{2}$ = x

Stella [2.4K]3 years ago

3 0

Subtract 3x from both sides which would be -2x+4=9 then subtract 4 from each side which would be -2x =5 then divide by -2 which would be x=2.5 or 2 1/2

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Adjacent Angles:<br><br>Answer:

lakkis [162]

Hey there!

Adjacent angles are two angles that are connecting, or adjoining. They have a common vertex and a common side, but they DO NOT overlap.

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3 years ago

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DENIUS [597]

Answer:

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Step-by-step explanation:

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3 years ago

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Carrie, Maria, and Nayla are friends that live close to one another. Which two friends have the shortest distance between them?

mr_godi [17]

The two friends have the shortest distance between them are Carrie and Nayla.

In order to determine the distance of the friends from each other, the value of the angles have to be determined. The given figure is a triangle. Sum of angles in the triangle equal 180 degrees.

The first step is to determine the value of x:

20x + 7) + (5x + 50) + (5x + 3) = 180

Add similar terms togethers

30x + 60 = 180

Combine similar terms

30x = 180 - 60

30x = 120

x = 120 / 30

x = 4

The second step is to determine the value of each angle

Nayla = 20(4) + 7 = 87

Carrie = Second angle = 5(4) + 50 = 70

Maria = Third angle = 180 - (70 + 87) = 23

Nayla and Carrie live closest to each other

Please find attached the image required to answer this question. TO learn more, please check: brainly.com/question/2390433

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3 years ago

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Marysya12 [62]

A. slope= 3/7 x-intercept= -10 y-intercept= 30/7
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4 years ago

Identify the polynomial a^2-b+c-d3

Leto [7]

Answer:

This is four term polynomial.

Step-by-step explanation:

Polynomial comes from poly(meaning “many”) and nomial (in this case meaning “term”). So it says “many terms” A polynomial is an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.

In this expression, we are to determine the polynomials depending on the number of terms present in the expression. The prefixes of the classification suggest the number of terms present.

a^2 - b + c - d^3

This is an example of a four-term polynomial. The first term is a^2, second one is -b, the third one is c, and the fourth one is -d^3.

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3 years ago