Can someone please explain this? Brainliest to the correct answer

She should buy 5 boxes because if she bought 4 then she would have 8 without a box

Answer:

The ordered pair that satisfies the equation is (7, -1)

Step-by-step explanation:

In order to find this, we can solve by subtracting. Start by stacking the two equations on top of one another and subtracting like terms.

3x + 3y = 18

(-) 2x + 3y = 11

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

x = 7

Now that we have the value for x, we can plug in to either equation to find y.

2x + 3y = 11

2(7) + 3y = 11

14 + 3y = 11

3y = -3

y = -1

Final answer:

By applying the method of subtraction to eliminate one variable, we find that the solution to the system of equations 2x + 3y = 11 and 3x + 3y = 18 is x = 7 and y = -3.

Explanation:

Solving a System of Linear Equations

The two linear equations given are:

To find the solution, we can follow a method similar to the one described for solving simultaneous linear equations. We can subtract the first equation from the second to eliminate the variable y:

This gives us x = 7. Now we can substitute x back into either equation to get the value of y:

2(7) + 3y = 11

By solving this, we get y = -3.

The solution to the system of equations is x = 7 and y = -3.

We know:

[tex]LCM(a,\ b)=\dfrac{ab}{GCF(a,\ b)}[/tex]

We have

[tex]GCF(a,\ b)=2,\ LCM(a,\ b)=20,\ a\leq12,\ b\leq12[/tex]

Substitute:

[tex]20=\dfrac{ab}{2}\qquad|\cdot2\\\\ab=40[/tex]

[tex]40=1\cdot40=2\cdot20=4\cdot10=5\cdot8[/tex]

Only 4 and 10 meet the requirements of the question.

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40 and 1 NOT, because 40 > 12

20 and 2 NOT, because 20 > 12

5 and 8 NOT because GCF(5, 8) = 1

The numbers are 4 and 10 or 5 and 8.

The relation is given as,

                 [tex]LCM*GCF=m*n[/tex]

Where m and n are two numbers.

Given that,  [tex]GCF=2,LCM=20[/tex]

Substitute values in above relation.

              [tex]m*n=2*20=40[/tex]

Since, both numbers less than or equal to 12.

We observed that,

              [tex]4*10=40\\\\5*8=40\\[/tex]

The numbers are 4 and 10 or 5 and 8.

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Answer:

[tex]x \leq 40 / 0.25\\ x \leq 160\\[/tex]

Step-by-step explanation:

If the spending limit is $ 40 and making each beads costs $ 0.25, then the amount of accounts you must do  multiplied by the manufacturing cost should not exceed $ 40.

Then the inequation that this restriction would represent is:

[tex]0.25x\leq 40\\[/tex]

Where x is the number of beads made.

This could also be written more specifically:

[tex]x \leq 40 / 0.25\\ x \leq 160\\[/tex]

Therefore the number of beads must be less than or equal to 160

Answer:

Due to decrease in production of tomatoes price will increase.

Step-by-step explanation:

Whenever a commodity whose demand is there in market produce in limited number, it price increases.

Since demand of the tomatoes will remain as usual but limited number of tomatoes will be there in the market so price of the tomatoes will increase. In this way consumer who can afford the price of tomatoes will purchase it and those consumer who can't afford it will not purchase it.

Lets put Monday as 'm'

Monday: m

Tuesday: 2m

Wednesday 2m-6

The Three Days: 5m-6

Final Answer: 5m-6=19

first simplify the inequalities:

3x+2>2  --> x>0   that corresponds to an open circle at 0 and shading to the right

3x <= 6 --> x<=2  that is a closed circle at 2 and shading to the left

together they have shading between open@0 and closed @2 so the

Answer (D) is correct

your answer would b c or $2600

The expected value for this tournament is given as C. $2600

The cost of hosting = 1000

The amount to be gotten if sunny = 4500

The chance that it would rain = 20 percent

4500 - 1000 = 3500

-1000 * 20%

= -200

3500 * (1-20%) = 2800

2800 - 200

= 2600

Hence the expected value that has been solved for the tournament is $2600

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B. {-2, 2, 3, 4}

usually in a graph like this, the domain (x) is on the left side, and the range (y) is on the right side.

hope this helps! ❤ from peachimin

Answer:

Amplitude

Step-by-step explanation:

I just had this question and got it right

30 tens = 30 x 10 = 300

300 ones = 300 x 1 = 300

300 is your answer

30 tens = 30 x 10 = 300

3 hundreds = 3 x 100 = 300

3 is your answer

~Rise Above the Ordinary

The first step is to figure out what angle DEB is equal to. Check out the attached image. I've marked this as angle y and it is shown in purple.

Note how the purple angle y and the orange 160 degree angle form a straight angle (180 degrees). So the two angles add to 180. Let's solve for y

(orange angle) + (purple angle) = straight angle

(angle CEB) + (angle DEB) = angle CED

y+160 = 180

y+160-160 = 180-160 ... subtract 160 from both sides

y = 20

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

Now we can use this to figure out angle x. The three angles x, 115, and 20, combine to 180 degrees as they all glue together to form a straight angle. Let's solve for x:

x+115+y = 180

x+115+20 = 180 ...replace y with 20

x+135 = 180 ......... combine like terms

x+135-135 = 180-135 ...... subtract 135 from both sides

x = 45

Therefore, the final answer is 45

I'm not quite sure what it's asking for you to do but...

_________

Yes, 15 includes 3 and 5, 5 and 3 multiplied is a way to get 15.

The multiple of 15 is 30, 45 and 60.

Yes, 15 is a multiple of each of its factors.

The factors of 15 include 3, and 5. Which is excluding 1 and itself, 15. So, if you ask if 15 is a multiple of its factors, the answer is yes. If you multiply 3 by 5, you get 15. If you multiply 5 by 3, you get 15.

Therefore, we can conclude that 15 is a multiple of its factors.

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that is the 2nd one Gomez to  Chang

For this one, it is important to know that when it says "under par" think of that as a negative number.  When doing that, here are the choices:

Jones= +3

Chang: -5

Gomez: -2

Harrison: -4

In golf, the lowest score wins, so put the numbers in numerical order from lowest to highest.  Here the answer:

-5, -4, -2, +3

Now match the scores with the corresponding person:

Chang, Harrison, Gomez, and Jones

So A is your answer.

Hope this helps!

2x + 5 ≤ x - 3

We can treat this like a usual algebraic equation.

Subtract x from both sides.

x + 5 ≤ -3

Subtract 5 from both sides.

x ≤ -8

Thus, x is less than or equal to the quantity -8.

We can test this by plugging in two values into the original inequality: a number greater than -8, and a number less than -8.

2x + 5 ≤ x - 3

We'll use 2 first.

2 * 2 + 5 ≤ 2 - 3

9 ≤ -1 × this is incorrect

Now  we'll use -10

2x + 5 ≤ x - 3

2 * -10 + 5 ≤ -10 - 3

-15 ≤ -13 √ this is correct

Mathematics defines an algebraic equation as a statement in which a relationship between two expressions is established through an equals sign.

For the given question the equation will be:

            [tex]\rm 2x + 5 = x - 3[/tex]

On solving the above equation, x can be defined as -8.

Let the number be x.

According to the question:

Twice of x + 5 =  x - 3

This forms a quadratic equation:

             [tex]\rm 2x + 5 = x - 3[/tex]

The equation  [tex]\rm 2x + 5 = x + 3[/tex] can be solved as follows:

          [tex]\begin{aligned} \rm 2x + 5 &= x - 3\\\\ 2x - x &= -3 - 5\\\\x &= -8 \end[/tex]

Therefore the number is -8.

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The answer to your question is...

The length of the bike path is 1 5/12 miles.

To find the length of the bike path, we need to determine the total distance Mrs. Escalante travels. She rode 2/3 of a mile and then discovered she still needed to travel 3/4 of a mile. This means she has already traveled a total of 2/3 + 3/4 = 17/12 miles. Let's convert this to a mixed number: 1 5/12 miles. Therefore, the length of the bike path is 1 5/12 miles.

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Answer:

The possible digits 0, 1, 2 , 3 or 4 .

Step-by-step explanation:

The possible digits that could go in the thousands place to make  13_,644 ≈ 130,000   this statement correct are: 0 1, 2,3 or 4.

For example:  132,644 may rounded off to 130,000

Round the number to the nearest thousand make the numbers whose last three digit through 644 into the next lower numbers that ends in 000.

Using number line for this possibility as shown in the below diagram:

Divide $62.50 by 5, and your answer will be $12.50 per ticket.

Note the equal sign. What you do to one side, you do to the other.

First, combine like terms

-7x + -7x = -14x

-14x = 84

Isolate the x. Divide -14 from both sides

(-14x)/-14 = (84)/-14

x = 84/-14

Divide

x = -6

-6 is your answer for x

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~Rise Above the Ordinary, Senpai

6y-5x=5                                           x=2y+7

x=2y+7                                              x=2(-10)+7

6y-5(2y+7)=5                                     x= -20+7

6y-10y-35=5                                       x= -13

6y-10y=5+35

-4y=40

y= -40/4

y=-10

Final answer:

To solve the given system using substitution, express x from the second equation and substitute into the first, then solve for y. After finding y, substitute it back into the second equation to find x, resulting in x = -13 and y = -10.

Explanation:

Solving Linear Equations Using Substitution Method

To solve the system of linear equations 6y - 5x = 5 and x = 2y + 7 using the substitution method, we first take the second equation, which gives us an expression for x, and substitute it into the first equation.

Step 1: Write the second equation x = 2y + 7.

Step 2: Substitute x in the first equation: 6y - 5(2y + 7) = 5.

Step 3: Expand and simplify: 6y - 10y - 35 = 5 ⇒ -4y = 40 ⇒ y = -10.

Step 4: Now that we have y, we substitute it back into the second equation to find x: x = 2(-10) + 7 ⇒ x = -20 + 7 ⇒ x = -13.

Therefore, the solution to the system of equations is x = -13 and y = -10.

Let’s first know what y=mx+b is.

M= slope

B=y-intercept

Since the problem gives us the slope, we can add it in already, which helps us a lot.

y=4x+b

This problem gives us a coordinate. We can substitute the numbers with the values.

3=4(1)+b

3=4+b

-b=4-3

-b=1

b=-1

Now that we have the y-intercept, we now have the hard parts done and now all we do is put it together.

Answer: y=4x-1

To see if it is correct, we can substitute numbers in (like the coordinate) to see if it was right.

3=4-1

3=3

There is your answer!

f is increasing over the interval 0 < x < 2.

f(2) = 3.

f is decreasing over the interval 2 < x < 5.

In Mathematics and Geometry, a function f(x) is considered as an even function if the following condition holds for all x-values (both positive x-values and negative x-values) in the domain of function f(x):

f(x) = f(-x)  ⇒ symmetrical with y-axis.

This ultimately implies that, a function that is symmetric with respect to the y-axis is an even function.

In this context, we can logically deduce the opposite of this graph would be defined over the interval x ≥ 0. Therefore, we can reasonably infer and logically deduce the following true statements;

f is increasing over the interval 0 < x < 2.

f(2) = 3.

f is decreasing over the interval 2 < x < 5.

100 + 10m = 15m

5m = 100

m=20 movies

20 is the amount of movies to make it cost the same.

To find the number of movies at which the cost of both movie clubs would be the same, you set the cost equations for both clubs equal to each other and solve for the number of movies, m. The result is m=20.

The subject here is essentially figuring out where the total cost of each movie club is equal. In this case, we can define two equations representing the total costs of each movie club. For the first club, which charges a $100 membership fee and $10 per movie, that equation is C1 = 100 + 10m . For the second club, which charges no membership fee but $15 per movie, the equation is C2 = 15m. Setting these two equations equal to each other gives us 100 + 10m = 15m. Solving for m (the number of movies) we subtract 10m from both sides to get 100 = 5m, then divide both sides by 5, to find that m = 20.

Therefore, if you plan to buy 20 or more movies in a year, the first club would be more cost effective. If you plan to buy less than 20 movies, the second club would be the better option.

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In mathematics, the absolute value of a number represents its distance from zero on the number line. If X is a rational number and Y is the opposite of X, their absolute values are the same because they are the same distance from zero, regardless of direction.

In the realm of mathematics, rational numbers have a property called absolute value. The absolute value of a number is its distance from zero on the number line, regardless of direction. So, if X is a rational number, Y being its opposite means it is the same distance from zero, but in the other direction.

For example, if X = 3 (a rational number), then Y = -3 (the opposite of X). Despite X and Y being opposites, their absolute values are the same: |3| = |-3| = 3, as both are 3 units away from zero.

Hence, no matter what values X and Y may have, if Y is the opposite of X (either positive or negative), their absolute values will always be equal because they are the same distance from zero.

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Answer:

Sample Response: You need to show that two sides of one triangle are proportional to two corresponding sides of another triangle, with the included corresponding angles being congruent.

Step-by-step explanation:

Different similarity theorems require different information.

The SAS similarity theorem requires two congruent sides and a congruent angle, between the corresponding sides.

The SAS similarity theorem stands for: Side-Angle-Side

This means that:

Hence, the SAS similarity theorem requires two congruent sides and a congruent angle, between the corresponding sides.

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An equivalent ratio of 64:60 is 16:15.

To get an equivalent ratio, you are going to simplify it like you would a fraction. An equivalent ratio would be 32:30. Then, just keep dividing both sides by the same number until both sides can't be divided by the same number. i.e. 9:6 -> 3:2 Both sides were divided by three.

The interval you use when finding the rate of change of a proportional relationship does matter because the behavior of the relationship could vary within different intervals. To illustrate this, consider a proportional relationship where y is directly proportional to x. If we calculate the rate of change for different intervals, we might get different results. Therefore, it is important to specify the interval when finding the rate of change to accurately represent the behavior of the relationship within that interval.

The interval you use when finding the rate of change of a proportional relationship does matter. The rate of change represents how a quantity changes with respect to another quantity. If you use different intervals, you may get different rates of change because the behavior of the relationship could vary within different intervals. Let me provide an example to illustrate this:

Suppose we have a proportional relationship where y is directly proportional to x:

y = kx

If we calculate the rate of change for different intervals, we might get different results. For example, if we consider the interval from x = 1 to x = 5, the rate of change would be (y2 - y1) / (x2 - x1) = (5k - k) / (5 - 1) = 4k / 4 = k. However, if we consider the interval from x = 3 to x = 7, the rate of change would be (y2 - y1) / (x2 - x1) = (7k - 3k) / (7 - 3) = 4k / 4 = k. In both cases, the rate of change is the same within each interval, but it may differ between intervals.

Therefore, it is important to specify the interval when finding the rate of change of a proportional relationship to accurately represent the behavior of the relationship within that interval.

The perimeter of the rectangular pattern, formed by arranging 16 squares with an area of 16 square units in a 4x4 layout, is 16 units.

To determine the perimeter of a rectangular pattern formed by arranging 16 squares, each with an area of 16 square units, in a 4x4 layout, we can follow these steps.

First, we know the area of each square is 16 square units, which means the side length of each square is the square root of 16, which is 4 units.

Now, when these squares are arranged in a 4x4 pattern, you have 4 squares along the length and 4 squares along the width. The length and width, in terms of these squares, are both 4 squares.

The perimeter of a rectangular shape is calculated using the formula: Perimeter = 2 × (Length + Width).

Plugging in the values:

Perimeter = 2 × (4 + 4) = 2 × 8 = 16 units.

So, the perimeter of the resulting figure is 16 units. This means, when you trace the outline of this 4x4 arrangement of squares, the total distance around the shape is 16 units. Each side contributes 4 units, and there are four sides, giving us a total perimeter of 16 units. This calculation follows the basic principles of perimeter for rectangular shapes and applies them to the given arrangement.

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