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Ad libitum [116K]
2 years ago
14

Solve the simultaneous equations using an algebraic method. x + 2y = 13 3x + y = 24

Mathematics
1 answer:
Firlakuza [10]2 years ago
4 0
X=7, y=3
because it is an algebraic method you have to solve for an x or y in either equation, and then plug that into the other equation. it’s helpful for these problems to check your work and plug the numbers back into the equations and the end for future reference !

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F(x) = (5x + 3)(x - 2)(x+2)
nlexa [21]

Answer: 15x^2+6x-20

Step-by-step explanation:

use symbolab.com for calculator and further steps

d/dx (5x+3)5

((x-2)(x+2))=2x

5(x-2)(x+2)+2x(5x+3)

15x^2=6x-20

8 0
3 years ago
EASY PLZ HELP!<br> Solve for x. (Show your work)<br> 2x + 3 &gt; 5
m_a_m_a [10]

<u><em>Hi there! </em></u>

<u><em>Answer:</em></u>

<u><em>X>1</em></u>

<u><em>*The answer must have a positive sign and greater than symbol.*</em></u>

Step-by-step explanation:

First, you subtract by 3 from both sides of an equation.

2x+3-3>5-3

Then, you subtract by the numbers from left to right.

5-3=2

2x>2

You can also divide by 2 from both sides of an equation.

\frac{2x}{2}>\frac{2}{2}

Finally, you divide by the numbers from left to right.

2/2=1

<em><u>Final answer is x>1</u></em>

I hope this helps you!

Have a nice day! :)

:D

-Charlie

Thank you so much! :)

:D

8 0
2 years ago
Read 2 more answers
Help? I really need it
Lorico [155]

Answer:

34 degrees and 131 degrees

Step-by-step explanation:

Complementary angles always add up to 90 degrees

90 - 56 = 34 degrees (1)

180 - 49 = 131 degrees (2)

5 0
2 years ago
Read 2 more answers
Tamara has decided to start saving for spending money for her first year of college. Her money is currently in a large suitcase
katovenus [111]

Answer:

She can create a function for the total savings in terms of the time x by adding the two functions together. The new function should look like this:

T(x)=S(x)+a(x)

So now we can substitute the given functions:

T(x)=450+6(x-2)

But this function can be simplified for it to be easier for her to calculate her total amount of savings. We can do that by distributing the 6 into the parenthesis. This is, multiply the 6 by both the x and the -2, so we get:

T(x)=450+6x-12

and now we can combine like terms. We can subtract 12 from 450 so we get:

T(x)=6x+438

And that will be our final function.

3 0
2 years ago
Read 2 more answers
Watch help video
Natali5045456 [20]

Answer:

100 \div .19

4 0
3 years ago
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