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2 years ago

Please help me this is due today

Mathematics

1 answer:

Serjik [45]2 years ago

7 0

Answer:

1. 15 (A)

2. 12 (G)

Step-by-step explanation:

1. We can make an equation out of this...

3x+3=48

x is the age of Geoff which is what we are trying to find out

We have to add 3 to both sides of the equation

3x+3=48

-3 -3

________

we end up with 3x=45

we then have to divide 3 by both sides because its the opposite of

multipling

3x=45

_____

we get x=15

2. We can write a problem statement

(2 x 9)-6=?

multiply 2 and 9 <u>FIRST</u>

18-6=?

your answer is 12

Your Welcome! Have a great rest of your day! :)

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You will get Brainly if if you answer correctly and provide step-by-step explanation pls help me I need help with five

lord [1]

Answer:

$2x^2+xy-3y^2$

Step-by-step explanation:

Start by taking everything out of the parentheses:

$3x^2-2xy-2y^2-x^2-(-3xy)-(y^2)$

Note two negatives make a positive:

$3x^2-2xy-2y^2-x^2+3xy-y^2$

Combine like terms:

$3x^2-x^2-2xy+3xy-2y^2-y^2$

Simplify

$2x^2+xy-3y^2$

7 0

2 years ago

The measure of the exterior angle of the triangle is ___

mr_godi [17]

Answer: 114°

Step-by-step explanation:

<h2>Concept: </h2>

Here, we need to know the idea of the "Exterior Angle theorem".

<u>The exterior angle theorem</u> states that the measure of an exterior angle of a triangle is equal to the sum of the measures of the two opposite interior angles of the triangle.

If you are still confused, then refer to the attachment below for a graphical explanation.

<h2>Solve:</h2>

Given

24 + (2x + 18) = 3x + 6

Put like terms together

24 + 18 + 2x = 3x + 6

Combine like terms

42 + 2x = 3x + 6

Subtract 6 on both sides

42 + 2x - 6 = 3x + 6 - 6

36 + 2x = 3x

Subtract 2x on both sides

36 + 2x - 2x = 3x - 2x

x = 36

Exterior angle = 3x + 6 = 3(36) + 6 = 114°

Hope this helps!! :)

Please let me know if you have any questions

4 0

3 years ago

Read 2 more answers

Help fast! 50 points!<br> How is 7.85 irrational, explain the steps.

Rufina [12.5K]

An irrational number cannot be expressed as a ratio between two numbers so putting a decimal makes it irrational

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3 years ago

Estimate by round

Svetach [21]

Answer:

Here is the answer before rounding

1.) 45.36

2.) 97/22

3.) 24.48

Here is the answer after rounding

1.) 45.4

2.) 4.4

3.) 24.5

Hope this helps! If so add me on Brainliest please!

Step-by-step explanation:

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3 years ago

Solve the equation 4(c-3)-8

____ [38]

Answer:

Step-by-step explanation:

6 0

3 years ago