Which ordered pair is a solution to the system of equations? Use any method to solve. 2x-y=5 3x+2y=4

Answers

Answer 1

Answer: Elimination

2 ( 2x -y=5) multiply = 4x -2y=10
3x +2y=4

* add the X's and the 10 and 4 7x=14 * divide by 7 giving you

x=2

*and then plug back in

3(2) +2y =4
6 + 2y = 4
2y= -2
y= -1

the order pair is ( 2 , -1)

Answer 2

Answer:

2x-y=5

3x+2y=4

We need to solve 2x-y=5 for y

Now let's start by adding -2x to both sides

2x-y-2x=5-2x

-y=-2x+5

Divide both sides by -1 so we eliminate the negative sign

-y/-1=-2x+5/-1

y=2x-5

Now substitute 2x-5 for y in 3x+2y=4

3x+2y=4

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

3x+4x-10=4

7x-10=4

Add 10 to both sides

7x-10+10=4+10

7x=14

Divide both sides by 7 so we can find the value for x

7x/7=14/7

x=2

Now substitute 2 for x in y=2x-5 so we can find the value for y

y=2x-5

y=(2)(2)-5

y=4-5

y=-1

Answer: (2,-1)

I hope that's help:0

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How do you convert gallons to liters? Explain

Answers

Multiply the quantity in gallons by (3.785 liter/gal) .
The product is the same quantity in liters.

1 gallon is equal to about 3.785 liters that's what the scientific community has decided on.

Select the correct answer.Which logarithmic equation is equivalent to this exponential equation?
12=5^x

A. x=log↓12 5
B. x=log↓5 12
C. 5=log↓x 12
D. 12=log↓5 x

Answers

Answer: To convert the exponential equation 12=5^x to a logarithmic equation, we can use the following formula:

logb(x) = y

is equivalent to

b^y = x

where b is the base of the logarithm.

In this case, we have:

5^x = 12

which is equivalent to:

log5(12) = x

Therefore, the answer is A. x=log↓12 5.

3 tbsp mayonnaise is how many servings of oil?

Answers

Answer:126 grams

Step-by-step explanation:

Solve for x in the triangle below. Show your work for full credit

Answers

Answer:

x = 3

Step-by-step explanation:

Since the sum of the interior angles of a triangle is always equal to 180°. This is regardless of the size or shape of the triangle.

In this case:

We can say that:

$\sf 45^\circ + 90^\circ + (8x+21)^\circ =180^\circ$

Simplify like terms:

$\sf 45^\circ + 90^\circ + 8x+21^\circ =180^\circ$

$\sf 156^\circ +8x = 180^\circ$

Subtract 156° on both sides:

$\sf 156^\circ +8x -156^\circ= 180^\circ- 156^\circ$

Simplify:

$\sf 8x = 24^\circ$

Divideby8 on both sides:

$\sf (8x)/(8)=(24)/(8)$

$\sf x = 3$

Therefore, the value of x is 3.

Answer:

$\sf\n\textsf{The square angle in the triangle indicates }90^o.\n\n\textsf{Since sum of angles of triangle equals }180^o,\n\n(8x+21)^o+45^o+90^o=180^o\n\textsf{or, }(8x+21)^o=45^o\n\textsf{or, }8x=24^o\n\therefore\ x=3^o$

Consider the following set of equations: Equation A: y = 2x + 4
Equation B: y = 3x + 1

Which of the following is a step that can be used to find the solution to the set of equations?

2x + 4 = 3x + 1

2x = 3x + 4

2x + 4 = 3x

2x + 1 = 3x + 4

Answers

The first one. y is equal to both equations so then you can set them equal to each other and solve for x if the questions requires it.

What is the next fraction in this sequence? Simplify your answer. 3/4, 1/4, 1/12, 1/36

Answers

hey their,

3/4
1/4
1/12
1/36
0/60

The pattern is -1/x every 2 +x/8

How i got this was 36/12=3
3*12=36
so 60-36=24
24x3/2+24=60
then 60/5=12

Hopethis helped

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