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3 years ago

Add [1/2x-4+2y]+[2/5x+5-4y]=

Mathematics

1 answer:

SashulF [63]3 years ago

7 0

Answer:

9/10x-2y+1

Step-by-step explanation:

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Can someone please help me

vitfil [10]

Answer:

I believe the answer is A

Please correct me if I am wrong

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3 years ago

Which ordered pair is the best estimate for the solution of the system of equations

Colt1911 [192]

The ordered pair that is the best estimate for the solution of the system of equations is (7, 1/2)

The given system of equations is:

$y=-\frac{1}{2}x + 4.......................(1)\\\\y = \frac{1}{2}x-3..........................(2)$

Equate equations (1) and (2)

$-\frac{1}{2}x + 4=\frac{1}{2}x -3$

Solve for x in the equation above

$-\frac{1}{2}x -\frac{1}{2}x =-3-4\\\\-x=-7\\\\x=7$

Substitute x = 7 into equation (1)

$y=-\frac{1}{2}x + 4\\\\y=-\frac{1}{2}(7) + 4\\\\y=\frac{1}{2}$

The ordered pair that is the best estimate for the solution of the system of equations is (7, 1/2)

Learn more on system of equations here: brainly.com/question/13729904

5 0

2 years ago

Plz help me thank you

murzikaleks [220]

Slope intercept form is y = mx + b where m is slope and b is y intercept.

The line crosses the y axis at y = 4

The slope is 4/3

So the answer is y = (4x/3) + 4

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3 years ago

What are the period and amplitude of the function?

Marta_Voda [28]

Answer: it’s a

Step-by-step explanation:

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3 years ago

Emily meal cost 32.75 and Darren's meal cost 39.88 . Emily treats Darren by paying for both meals,and leaves 14% tip. Find the t

tia_tia [17]

32.75 + 39.88 = 72.63

72.63 x 114% = 72.63 x 1.14 = $82.7982 or $82.80 to the nearest cent.

114% is all of the cost of the meal plus 14 % extra for the tip. See how muliplying by 1.14 includes the $72.63 (this saves the step of adding it on at the end if you were only to find 14% of $72.63)

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3 years ago