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4 years ago

Solve for the variable X=5y for y

1 answer:

7 0

y= x/5. or x over 5. you are trying to isolate y. in other words you are trying to get y all by itself on one side of the equation. To do that, you need to divide 5 by both sides. It is important to do what you do on one side to the other because that keeps that values of the equation the same.

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Here is 100 brain coins have a good day

Harrizon [31]

Answer:

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3 years ago

Use the eliminatio method to solve the system of equations. Choose the correct order pair: 3x+5y=48 -3x+5y=12

kifflom [539]

Answer:

(6,6)

Step-by-step explanation:

3x+5y=48

-3x+5y=12

Ok so when you're doing elimination you want to combine all of the like terms. In this case, we need to combine 3x and -3x, 5y and 5y, and 48 and 12. 3x and -3x cancel out, so that leaves you with 10y=60. Solving for y gives you y=6. Now you need to solve for x, so using 3x+5y=48, by plugging in y you get 3x+(5*6)=48. Simplifying that gives you 3x+30=48. Subtract 30 and divide by 3, and you get x=6. Thus the Answer is (x,y) or (6,6)

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3 years ago

The polynomial equation x^3-4x^2+2x+10=x^2-5x-3 has complex roots 3+-2i What is the other root? Use a graphing calculator and a

kirill115 [55]

Answer:

B. -1

Step-by-step explanation:

x^3-4x^2+2x+10=x^2-5x-3

We know it has 3 roots since it is a 3rd degree polynomial.

Two of the roots are (3+2i) and (3-2i)

Subtract x^2-5x-3 from both sides

x^3-4x^2+2x+10-(x^2-5x-3)=x^2-5x-3 -(x^2-5x-3)

Distribute the minus sign

x^3-4x^2+2x+10-x^2+5x+3=x^2-5x-3 -x^2+5x+3

x^3 -5x^2+7x +13 =0

Graphing this equation , we see that it crosses the x axis at x=-1

That covers the three roots, 1 real and two complex

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3 years ago

A family is going on a trip for 3 days tgr total cost for hotel is 336 one hundred dollars a day was budgeted for food how much

Alona [7]

It will cost 212$ a day

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4 years ago

Radius of diameter 4.75 inches

Naily [24]

The radius would be 2.38

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4 years ago

Read 2 more answers