Which is the value of y in the following system? y=3x-5 6x+3y=15

Answers

Answer 1

Answer:

The value of y in the solution of the system is [tex]y=1[/tex]

Step-by-step explanation:

we have

[tex]y=3x-5[/tex] -----> equation A

[tex]6x+3y=15[/tex] -----> equation B

substitute equation A in equation B

[tex]6x+3(3x-5)=15[/tex]

[tex]6x+9x-15=15[/tex]

[tex]15x=15+15[/tex]

[tex]15x=30[/tex]

[tex]x=2[/tex]

Find the value of y

[tex]y=3(2)-5=1[/tex]


Related Questions

Find the cost of one item to the nearest cent. Round if necessary. 4 lbs. of bananas for $1.92

Answers

0.48 cents per pound.

For this case we must find the unit cost of bananas, that is, one pound of banana. For this, we make a rule of three:

4lb -----------> $ 1.92

1lb -----------> x

Where the variable "x" represents the cost of a pound of banana.

[tex]x = \frac {1 * 1.92} {4}\\x = 0.48[/tex]

Thus, the banana pound costs $ 0.48.

If we round we have $ 0.50

ANswer:

$ 0.48

Julius is going to have a multi-course meal. The following table shows how many different dishes are offered for each course.
Course
Number of dishes
Appetizer 333
Main course 444
Dessert 333
How many different meal combinations does Julius have to choose from?

Answers

Answer:

(3)*(4)*(3) = 36 different meal combinations

Step-by-step explanation:

Course  -    Number of dishes

Appetizer              3

Main course       4

Dessert               3

Since we can choose any combination of dishes, we have

3 possibilities for the appetizer,  4 possibilities for main course and three possibilities from dessert.

3 and 4 and 3

3 ∧ 4∧ 3

(3)*(4)*(3) = 36

Answer: 36

Step-by-step explanation:

Given: Julius is going to have a multi-course meal.

The following table shows how many different dishes are offered for each course.

Course                       Number of dishes

Appetizer                          3

Main course                     4

Dessert                             3

Now, the different meal combinations for Julius is given by :-

[tex]3\times4\times3=36[/tex]

Hence, there are 36 different meal combinations .

Please help with this question.

Answers

The maximum height occurs at the vertex found using t = -b/2a

Solve for t

t = -20 / 2(-5) = -20/-10 = 2 seconds.

Now replace t with 2 in the original equation to solve for the height:

h(t) = -5t^2 + 20t + 110

h(2) = -5(2)^2 + 20(2) +110

h(2) = -5(4) + 40 + 110

h(2) = -20 + 40 + 110

h(2) = 130

Travis only threw the spike 130 meters. Since Laura is at 135 meters, the spike did not reach her.

Katie put a $980 item on layaway by making a down payment of 14% of the purchase price. How much does she have left to pay after making the down payment?

Answers

Answer:

$842.8

Step-by-step explanation:

It says that Katie already paid the 14% of the item as a down payment, so she needs to pay the remaining 86% of the item.

To get that, it is:

$980 x 86% = $842.8

What is the volume of a shoe box that is 15x10x8 inches

Answers

Answer:

1200 inches cubed.

Step-by-step explanation:

You literally multiply what the measurements are. :)

Select the equations of f the lines that are parallel to the lines whose equations is y=3x+5

Answers

Answer:

y = 3x + b where b is any real number

Step-by-step explanation:

The slope-intercept form of an equation of a line:

[tex]y=mx+b[/tex]

m - slope

b - y-intercept

We have the equation: [tex]y=3x+5[/tex]

Parallel lines have the same slope. Therefore the equation of the lines that are parallel to the given line if in form:

[tex]y=3x+b[/tex]

where b is any real number.

find the approximate area of a circle with radius equal to 8 feet

Answers

Answer:

201.06ft^2

Step-by-step explanation:

The formula for the area of a circle is pi*r^2

We just plug in 8 for r and we get our answer.

Answer:

The correct answer is,

area of given circle = 200.96 feet square

Step-by-step explanation:

Formula:-

Area of circle = πr²

Where r is the radius of circle

To find the area of given circle

Here radius r = 8 feet

Area = πr² = 3.14 * 8² = 3.14 * 64

 = 200.96

Therefore area of given circle = 200.96 feet square

what is 14% of 40 million?

Answers

14% of 40,000,000 is 5,600,000

Math help pleaseeeee

Answers

Answer:

[tex]x^{\frac{4}{5} }[/tex]

Step-by-step explanation:

Using the rule of exponents

[tex]a^{\frac{m}{n} }[/tex] = [tex]\sqrt[n]{x^{m} }[/tex]

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] = [tex]a^{(m+n)}[/tex], hence

[tex]\sqrt[5]{x}[/tex] = [tex]x^{\frac{1}{5} }[/tex], thus

[tex]x^{\frac{1}{5} }[/tex] × [tex]x^{\frac{1}{5} }[/tex] × [tex]x^{\frac{1}{5} }[/tex] × [tex]x^{\frac{1}{5} }[/tex]

= [tex]x^{\frac{4}{5} }[/tex]

Answer:

[tex] x^{\frac{4}{5} }[/tex]

Step-by-step explanation:

We are given the following expression and we are to determine its most simplified form:

[tex] \sqrt [ 5 ] { x } . \sqrt [ 5 ] { x } . \sqrt [ 5 ] { x } . \sqrt [ 5 ] { x } [/tex]

We know that [tex] \sqrt [ 5 ] { x } [/tex] [tex] = x ^ { \frac { 1 } { 5 } } [/tex]

And since we have four of these like terms so the power of x will become 4, thus making it [tex] x ^4 [/tex].

When [tex] x ^ 4 [/tex] is combined with the square root 5, we get:

[tex]x^4 \times x^{\frac{1}{5}} = x^{\frac{4}{5} }[/tex]

Which of the following is the solution of 5e2x - 4 = 11?

Answers

Answer:

x = (1/2)(ln 3)

Step-by-step explanation:

Please indicate exponentiation using the symbol " ^ ":

5e^(2x) - 4 = 11

To solve this, add 4 to both sides, obtaining:   5e^(2x) = 15

Next, divide both sides by 5, obtaining                e^(2x) = 3

Now take the natural logarithm (ln) of both sides:

2x = ln 3

Finally, divide both sides by 2, obtaining:           x = (1/2)(ln 3)

This last result is approx. equal to 0.549

Answer:

It's C) x= in3/2

on Edg.

Plz help !!!!!!!!!!!!!

Answers

Answer: [tex]\bold{\large{a^{\frac{1}{2}}b^{\frac{1}{2}}}}[/tex]

Step-by-step explanation:

[tex]\sqrt{ab}=(ab)^{\frac{1}{2}}=\large{\boxed{a^{\frac{1}{2}}b^{\frac{1}{2}}}}[/tex]

What is the length of diagonal d of a cube that is 10 on each edge?Round your answer to the nearest tenth of an inch.

Answers

Answer:

17.3 in

Step-by-step explanation:

(a) Diagonal on a face

First, we calculate the diagonal f on a face of the cube.

a² + a² = f²

       f² = 2a²

(b) Diagonal of the cube

Consider the triangle made by the diagonal d, diagonal f, and the edge of the cube

                                                            d² =  f²   + a²

Substitute the value of f²                   d² = 2a² + a² = 3a²

Take the square root of each side     d = a√3

Substitute the value of a                     d = 10√3 = 10 × 1.732 = 17.3 in

The diagonal of the cube is 17.3 in.

his recipe makes 5 pancakes.
Sanjay follows the recipe but wants to make 20 pancakes.
How much of each ingredient does he need?

Recipe: Makes 5
135 g flour
1 teaspoon (tsp) baking powder
2 tablespoons (tbsps) sugar
130 ml milk
1 egg
2 tablespoons (tbsps) oil

Answers

Answer:

540g flour

4tsp baking powder

8tbsps sugar

520mL milk

4 eggs

8tbsps oil

Step-by-step explanation:

To find out how many times he would need to make the recipe, we can divide   20 by 5:

[tex]\frac{20}{5} =4[/tex]

Now we know that Sanjay must make the recipe four times to make 20 pancakes. We need to multiply each value by 4 to get how much he needs to make 20.

[tex](4)(135)=540\\(4)(1)=4\\(4)(2)=8\\(4)(130)=520\\(4)(1)=4\\(4)(2)=8[/tex]

Sanjay can make 20 pancakes by multiplying each ingredient in the original recipe for 5 pancakes by 4. This gives 540 g flour, 4 tsp baking powder, 8 tbsps sugar, 520 ml milk, 4 eggs, and 8 tbsps oil.

To adjust the quantities of ingredients for a recipe to make a different number of servings, we multiply the amounts of each ingredient by the factor that represents how many times the original number of servings we want to make. Sanjay's goal is to make 20 pancakes instead of 5, which is 4 times the original recipe. We'll multiply each ingredient quantity by 4 to find out how much of each is needed for 20 pancakes.

Multiply the amount of flour (135 g) by 4 to get 540 g of flour.

Multiply the amount of baking powder (1 tsp) by 4 to get 4 tsp of baking powder.

Multiply the amount of sugar (2 tbsps) by 4 to get 8 tbsps of sugar.

Multiply the amount of milk (130 ml) by 4 to get 520 ml of milk.

Multiply the amount of eggs (1 egg) by 4 to get 4 eggs.

Multiply the amount of oil (2 tbsps) by 4 to get 8 tbsps of oil.

PLEASE HELP

The table below represents a linear function f(x) and the equation represents a function g(x):


x f(x)
−1 −12
0 −6
1 0
g(x)

g(x) = 2x + 6


Part A: Write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x).

Part B: Which function has a greater y-intercept? Justify your answer.

Answers

Answer:

1.the slope of the function f(x) is greater than the slope of the function g(x)

2. the y intercept in the function g(x) is the greater

Step-by-step explanation:

1. plot the graph for the function f(x)

identify points in on the line, i.e (2,6) and (1,0)

find the slope of function f(x)= change in y/change in x

m=(6-0)/2-1 = 6

equation for the function f(x)=   {y-6/x-2}=6

y-6=6x-12

y=6x-6

2. the equations for functions

f(x) is given by y=6x-6

g(x) is given by y=2x+6

y intercept for f(x) =- 6

y intercept for g(x)= +6

g(x) has greater y intercept.

QUESTION A

We can use any two points from the table to determine the slope of the linear function represented by table.

We use (0,-6) and (1,0).

We use the formula,

[tex]m = \frac{y_2-y_1}{x_2-x_1} [/tex]

[tex]m = \frac{0 - - 6}{1 - 0} = 6[/tex]

For the second function

[tex]g(x) = 2x + 6[/tex]

This function is of the form;

[tex]y = mx + c[/tex]

where

[tex]m = 2[/tex]

is the slope.

The slope of f(x) is greater than the slope of g(x).

Part B

At y-intercept , x=0.

From the table, x=0 when y=-6.

Therefore f(x) has y-intercept -6.

For

[tex]g(x) = 2x + 6[/tex]

the y-intercept is 6.

Therefore g(x) has greater y-intercept.

Match the term with the definition. Please help me

Question 1 options:
Angle
Parallel Lines
Perpendicular Lines
Plane
Circle
1. a flat surface that extends infinitely and has no depth; it has length and width
2. two lines that intersect at 90° angles
3. two lines that lie within the same plane and never intersect
4. a set of all points in a plane that are a given distance from a point
5. a figure consisting of two rays with a common endpoint

Answers

1)Plane

2)Perpendicular Lines

3)Parallel lines

4)Circle

5)Angles

Final answer:

The five geometric terms—Plane, Perpendicular Lines, Parallel Lines, Circle, and Angle have been matched with their respective definitions using principles of Euclidean geometry.

Explanation:

Matching the geometric terms with their definitions will allow you to better understand the basic concepts of Euclidean geometry.

Plane: A flat surface that extends infinitely and has no depth; it has length and width.

Perpendicular Lines: Two lines that intersect at 90° angles.

Parallel Lines: Two lines that lie within the same plane and never intersect.

Circle: A set of all points in a plane that are a given distance from a point.

Angle: A figure consisting of two rays with a common endpoint.

Now you can match the terms to their definitions:

Plane - Definition 1

Perpendicular Lines - Definition 2

Parallel Lines - Definition 3

Circle - Definition 4

Angle - Definition 5

Consider that the length of rectangle A is 10 cm and its width is 6 cm. Which rectangle is similar to rectangle A? A) A rectangle with a length of 9 cm and a width of 6 cm. B) A rectangle with a length of 15 cm and a width of 9 cm. C) A rectangle with a length of 14 cm and a width of 7 cm. D) A rectangle with a length of 12 cm and a width of 8 cm.

Answers

Answer:

B

Step-by-step explanation:

10/6=5/3=15/9

Answer:

B) A rectangle with a length of 15 cm and a width of 9 cm

Step-by-step explanation:

In similar figures sides are in proportion .The given rectangle A has length and width in the ratio 10:6=5:3.

For option A ratio of sides for the rectangle = 9:6=3:2

For option B ratio of sides =15:9=5:3

For option C ratio of sides =14:7=2:1

For option D ratio of sides =12:8=3:2.

Option B that is A rectangle with a length of 15 cm and a width of 9 cm has the same ratio of sides as that of rectangle with side 10 cm and width 6cm.

Hence the two rectangles are similar.

Write the answer to the questions below: The * means multiply.

-3.078 + 1,367 = ____
-8 * 2 + (-6 * 6) = ____
¾ + 278 + -24.5 = _____

Answers

Answer:

1. 1363.922

2. -52

3. 254.25

How many 1 metre fence panels and how nany 2 metre face panels do you need to put fencing all around the plot?


Please help.

Answers

Answer:

You need 8 2 metre face panels and 2 1 metre face panels

This is because the 2 metre face panels will completely cover the both of the 4 metre sides, and almost cover the 5 metre sides.

Then you will need 1 2 metre face panel for each of the 5 metre sides to complete the fence.

Hope I helped

Step-by-step explanation:

Find 4 1/5 · 7 2/3.

A. 28 2/15

B.28 3/10

C. 32 1/5

D. 32 3/5

Answers

Answer:

D. 32 3/5

Step-by-step explanation:

4 1/5 * 7  2/3

Change each number to an improper fraction

4 1/5 = (5*4+1)/5 = 21/5

7 2/3 = (3*7+2)/3 = 23/3

Multiply these together

21/5 * 23/3

483/15

Change this back to a mixed number

15 goes into 483 32 times (32*15 =480) with 3 left over

32 3/5

Answer:

The answer to this problem is C. 32 1/5.

Step-by-step explanation:

Step 1: Multiply the whole number by the denominator then add the numerator to it. Apply this to both fractions individually.

21/5 *  23/3  

Step 2: Multiply the fractions.

21/5 * 23/3 = 483/15  

Step 3: Simplify the fraction into the simplest form.

483/15 simplifies to 32 3/15 and then simplifies to its simplest form 32 1/5.

A square has a side length of 36 feet. This square is dilated by a scale factor of 2/3 to create a new square. What is the side length of the new square?

Answers

I believe it is 24 because 36 divide by 3 equals 12 and 12x2=24 which is 2/3 of 36

Answer:

24 feet

Step-by-step explanation:

got it right on ttm :)

If x = 17 cm and y = 8 cm, what is the length of z? A. 13 cm B. 19 cm C. 14 cm D. 15 cm

Answers

Answer:

unknown

Step-by-step explanation:

your question may be incomplete

same way of solving

Answers

Answer

96 inches cubed

Step-by-step explanation:

Ok, same way of solving then. Just with a few more useless numbers. Take rectangular prism A, 6in x 3in x 3in, you will get 54in^3.

Then take prism B, 2in x 3in x 7in, you will get 42in^3.

Finally, take those two numbers, add them, and you end up with 96in^3

Tomas drew a rectangle with an area of six square centimeters what is the greatest possible perimeter for this rectangle

Answers

Answer:

Perimeter=10

Step-by-step explanation:

The reason i got this was because a rectangles area is base times hight. Also if you draw a rectsngle and make it into 3 rows and 2 colums the area would be 6, and if you count the outside not including the very corners, you will get a perimeter of 10

1/4×[(-6.8)+(10.4)]+54.3

Answers

Answer:

55.2

Step-by-step explanation:

This question can be solved using pemdas. In order of operations, parenthesis come first. So you will do -6.8 + 10.4 to get 3.6. From there it goes to exponents (none), then to multiplication. So multiply 3.6 by 1/4, or .25 to get 0.9. Then just add .9 onto 54.3 to get 55.2 and that's your answer!

Hope this helped, please mark brainliest i need to feed my family ^_^

SIMPLIFY. WILL MARK BRAINLIEST

Answers

Here is your answer. x^5-3x^4+6x^2+x-9

How would the graph of the function y=x2-8 be affected if the function were changed to y=x2-3
A) the graph would shift 3 units down
B) the graph would shift 5 units to the left
C) the graph would shift 5 units down
D)the graph would shift 5 units up

Answers

Answer:

D) The graph would shift 5 units up.

Step-by-step explanation:

f(x) + n - shift the graph n units up

f(x) - n - shift the graph n units down

f(x - n) - shift the graph n units to the right

f(x + n) - shift the graph n units to the left

------------------------------------------------------------------

We have f(x) = x² - 8

f(x) = x² - 8          add 5 to both sides

f(x) + 5 = x² - 3

Therefore your answer is D)

The graph of the function y=x^2-8 would shift 5 units up if changed to y=x^2-3, due to the increase in the constant term.

When comparing the functions y=x^2-8 and y=x^2-3, a change in the constant term represents a vertical shift of the graph. The constant term in the function y=x^2-8 is -8, and in the function y=x^2-3 it is -3. Since -3 is greater than -8 by 5, the graph will be shifted up by 5 units. Therefore, the correct answer to how the graph of the function would be affected is that it would shift 5 units up.

A shirt originally cost $47.26, but it is on sale for $44.90. What is the percentage decrease of the price of the shirt?

Answers

Answer: 5%

Step-by-step explanation: In order to calculate the percentage of the discount we need to first calculate the amount of the discount.

$47.26 - $44.90 = $2.36 discount amount

In order to calculate the percentage of the discount you must divide the discount amount by the original cost.

$2.36 / $47.26 = .0499 = rounded off to a 5% discount

Answer:

The decrease is by 5%.

The area of a trapezoid is 30 square centimeters. The height is 4 centimeters. The shorter base measures 6 centimeters. What is the measure of the longer base? Draw a picture of the problem. Explain your thinking,

Answers

Answer:

The measure of the longer base is [tex]9\ cm[/tex]

The picture of the problem in the attached figure

Step-by-step explanation:

we know that

The area of a trapezoid is equal to

[tex]A=\frac{1}{2}(b1+b2)h[/tex]

where

b1 ----> the measure of the shorter base

b2 ----> the measure of the longer base

h ---> is the height

In this problem we have

[tex]A=30\ cm^{2}[/tex]

[tex]b1=6\ cm[/tex]

[tex]h=4\ cm[/tex]

substitute the values and solve for b2

[tex]30=\frac{1}{2}(6+b2)4[/tex]

[tex]15=(6+b2)[/tex]

[tex]b2=15-6=9\ cm[/tex]

Answer:

The measure of the longer base is:

                            9 centimeters

Step-by-step explanation:

We know that the area of a trapezoid with height h and two parallel bases b and b' is given by the formula:

[tex]\text{Area of trapezoid}=\dfrac{1}{2}\times (b+b')\times h[/tex]

Here we have:

The area of a trapezoid is 30 square centimeters. The height is 4 centimeters. The shorter base measures 6 centimeters.

i.e.  

[tex]30=\dfrac{1}{2}\times (b+6)\times 4\\\\30=2(b+6)\\\\b+6=\dfrac{30}{2}\\\\b+6=15\\\\b=15-6\\\\b=9\ \text{centimeters}[/tex]

Describe what happens when a number is added to its opposite.write an equation that shows a number b being to its opposite

Answers

Answer:

The answer comes out as 0.

Step-by-step explanation:

An example is 1 which the opposite is -1. Add them together, what do you get? 0.

Answer:

when its added to its opposite it becomes zero oviousldsfyasld;fjkl;aly

b + -b = 0

7 + -7 = 0

The answer please !!

Answers

Answer:

[tex]\frac{DE}{PQ}=\frac{3}{2}[/tex]

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional

In his problem

If Triangles DEF and PQR are similar

then

The corresponding sides are

DF and PR

FE and RQ

DE and PQ

so

[tex]\frac{DF}{PR}=\frac{FE}{RQ}=\frac{DE}{PQ}=\frac{3}{2}[/tex]

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