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3 years ago

7

Read the following word problem, then choose which linear equation models the problem.

1 answer:

dusya [7]3 years ago

4 0

Answer is B
Explanation:
Option c n d are removed as the question is clearly saying difference so there should be minus sign
It is no A because one number (x) is 10 time more of another number (x) not x is x times of another number
So 10 should be multiply with x n minus it from x

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3x+2y=23<br> 1/2x-4=y<br><br> What should I do for this one...? I dont really understand

Hitman42 [59]

Since you have y alone on one side of the equation......

Use substitution and plug in 1/2x-4 for y in the other equation.

$3x+2(1/2x-4)=23\\$

Distribute

$3x+x-8=23$

Combine like terms

$4x-8=23$

Add 8 to both sides

$4x=31$

Divide by 4

and $x=31/4$

Plug this value in for x

$31/4*1/2-4=y$

Simplify

$31/8-4=y$

Multiply everything by 8 and simplify

$31-32=8y\\-1=8y$

Divide.....

$y=-1/8$

Your answers are:

$y=-1/8\\x=31/4$

8 0

3 years ago

Consider the triangle

svet-max [94.6K]

Answer:

Im confused what your trying to get at is there a picture or something

Step-by-step explanation:

4 0

3 years ago

Please help this is due tonight and there is more to this

GrogVix [38]

Answer:

1/8

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Task: Multiplying and Dividing Expressions

koban [17]

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3 years ago

What is the exact area of a circle with a radius of 12 ft

lisov135 [29]

Answer:

The area is approximately 453 ft²

Step-by-step explanation:

Area of a circle = $\pi r^{2}$

If $\pi$ = 22/7, and r = 12 ft

Area = (22/7)×12²

= 3.143*144

= 452.592 ft²

≈ 453 ft²

5 0

3 years ago