There are 75 students in grade 3. There are 44 more students in grade 4 than in grade 3. How many students are in grade 4?

a. scarcity

hope this helps! :3

Buehlermaci,

The answer is option A "scarcity." It's not option B because economics is the distribution or a production of a item. It's not option C because opportunity cost is when you are looking at the value of two things before you make a decision on which you want kinda like pros and cons. Scarcity is the shortage on a resource but the person decides to spend it on wants and needs so basically the difference between limited resources and wants and needs.

Hope this helps!

[tex]7t=x\\\\t=\dfrac{x}{7}[/tex]

assuming you mean y² = 169

then taking the square root of both sides gives

y = [tex]\sqrt{169}[/tex] = ± 13

since 13² = 169 and (- 13)² = 169

The values of y are -13 and 13 in the equation y^2 = 169.

It is given that the expression [tex]\rm y^2 = 169[/tex]

It is required to find the values of y.

Any equation of the form [tex]\rm ax^2+bx+c=0[/tex] where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

We have a quadratic equation:

[tex]\rm y^2 = 169[/tex]

[tex]\rm y^2-169=0[/tex]   (subtract 169 on both sides)

[tex]\rm y^2- 13^2=0[/tex]           (169 = 13²)

(y+13)(y-13) = 0      (a²-b² = (a+b)(a-b))

Taking  (y+13) = 0 ⇒ y = -13

Taking (y-13) = 0  ⇒ y = 13

Thus, the values of y are -13 and 13 in the equation y^2 = 169.

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Answer:

The unit rate for the price to the length of the fabric will be $8 per meter.

Step-by-step explanation:

The two points on the graph of the line are:  (1, 8) and (3, 24)

For finding the unit rate for the price to the length of the fabric, we just need to find the slope of that line.

Formula for finding the slope is:  [tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex] , where [tex](x_{1}, y_{1})[/tex] and [tex](x_{2}, y_{2})[/tex] are two given points.

Here,  [tex](x_{1}, y_{1})=(1,8)[/tex] and [tex](x_{2}, y_{2})=(3, 24)[/tex]

So, the slope of the line will be:  [tex]m= \frac{24-8}{3-1}= \frac{16}{2}= 8[/tex]

Thus, the unit rate for the price to the length of the fabric will be $8 per meter.

The unit rate for the price to the length of the fabric is $8/m

from the question, we have the following parameters that can be used in our computation:

The graph

The unit rate is calculated as

Unit rate = Change in y/x

using the above as a guide, we have the following:

Unit rate = (24 - 8)/(3 - 1)

Evaluate

Unit rate = 8

Hence, the unit rate is $8/m

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Answer:

X= -2

Step-by-step explanation:

I'm sorry if my addition signs looks like division signs

5X + 2 ( X - 4 ) = 5X + X - 10

5X + 2X - 8 = 5X + X - 10

7X - 8 = 6X - 10

add 8 on both sides

7X = 6X - 2

subtract 6X on both sides

X= -2

Answer:

-2

Step-by-step explanation:

I took the test and got it wright.

Answer:

w = -1

Step-by-step explanation:

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

Add 2 to both sides

w - 2 (+2) = -3 (+2)

w = -3 + 2

Simplify

w = -1

3. w = -1 is your answer

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

~Rise Above the Ordinary, Senpai

Personal finance skills are an individual's way of financing his or her accounts keeping in mind the most significant aspects like -money, property and investment. These skills improve an individual's quality of life.

Hence, a person who does not know these skills gradually result in the following -

1. higher tax rates -  A person without personal finance skills will not be able to save his taxes. He does not know about various investment options that can save his tax.

2. less preparation for emergencies - A person lacking these skills will not timely manage his accounts and if an emergency occurs, he might not have money to surpass that emergency.

3. increased long-term challenges - A person who does not invest timely and in the right things can end up not earning any money from these investments. Hence, he will not be prepared for further challenges that will come once he ages. He cannot have enough money by the time he retires.

Have a nice day :)

Answer:

This system has no solution.

Step-by-step explanation:

The equation y=2x+3 has already been solved for y, so we can substitute (2x+3) for y in the other equation, 2x - y = 7:  2x - (2x + 3) = 7.  But note that simplifying this last result turns out -3 = 7, which is of course impossible.  Thus, this equation has no solution.

Answer:

C: No solution

Step-by-step explanation:

I got it right on Edge

AB=BC=CD together with the fact the horizontal lines are parallel implies that HG=GF=FE (can be proved using triangle similarity).  So knowing FE=5.1 implies FG=5.1

Since we now know that the horizontal lines are equidistant, it means that ML=LK=KJ (same argument as above). Therefore KL=7.6.

Let me know if you have questions!

Since the horizontal lines are parallel, and AB=BC=CD, the lengths of KL and FG are: D. KL = 7.6; FG = 5.1.

In Mathematics and Euclidean Geometry, parallel lines are two lines that are always the same distance apart and never meet.

This ultimately implies that, parallel lines are always coplanar lines and straight lines that have an equal distance between each other.

By critically observing the figure, we can logically deduce that the horizontal lines are all parallel to each other with two transversals;

AB = BC = CD (Given)

AB = LM = 7.6

BC = KL = 7.6

CD = JK = 7.6

AB = GH = 5.1

BC = FG = 5.1

CD = EF = 5.1

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Answer:

[tex]A[/tex], | [tex]\frac{47}{10} -(3.2)[/tex] |

To find the vertical distance between a dolphin below sea level and a bird above sea level, the absolute values of their distances from sea level must be added, resulting in a distance of 4.7 + 3.2 meters, which means the correct answer is 'none of the above'.

The question is asking to calculate the vertical distance between a dolphin below sea level and a bird above sea level. To find this vertical distance, you would add the absolute values of their distances from sea level. Since sea level is our reference point, and the dolphin is at 3.2 meters below it while the bird is at 47/10 or 4.7 meters above, the expression to represent the vertical distance between the dolphin and the bird would be:

4.7 + 3.2

The correct answer is none of the above since neither of the provided expressions represents the sum of the two distances. Instead, each expression attempts to subtract one distance from the other, which is not the correct method for finding the vertical distance between two objects on opposite sides of the sea level reference point.

i think it is 8/15 of the pizza

Find common denominators. Multiply 5 to numerator and denominator of 1/3, and 3 to the numerator and denominator of 1/5

(1/3)(5/5) = 5/15

(1/5)(3/3) = 3/15

Add

5/15 + 3/15 = 8/15

Ruby and Angie ate 8/15 of the pizza.

hope this helps

The equation of line will be;

⇒ y = 5x - 3

What is Equation of line?

The equation of line passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is defined as;

y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

The perpendicular line is,

y = -1/5x - 3

And, The point contain by the line = (1 , 2)

Now,

We need to find the slope of line.

Since, Product of slopes of perpendicular lines are - 1.

So, we find the slope of perpendicular line as;

y = -1/5x - 3

dy/dx = -1/5

So, The slope of the line = - (1/-1/5) = 5

Hence, The equation of line passing through the points (1, 2) and with slope 5 is defined as;

y - y₁ = m (x - x₁)

y - 2 = 5 (x - 1)

y - 2 = 5x - 5

y = 5x - 5 + 2

y = 5x - 3

Thus, The equation of line will be;

⇒ y = 5x - 3

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Answer:

49 seconds.

Step-by-step explanation:

We have been given that an elevator ascends at a rate of 29.6 feet per second. A building is 1,450 feet tall. We are asked to find the time it will take for the elevator to travel from the ground floor to the roof.

To find the time taken by elevator to reach the top of the building, we will use rate formula.

[tex]\text{Time}=\frac{\text{Distance}}{\text{Rate}}[/tex]

[tex]\text{Time}=\frac{\text{1450 ft}}{\frac{\text{29.6 feet}}{\text{second}}}[/tex]

[tex]\text{Time}=\frac{\text{1450 ft}}{\text{29.6 feet}}\times\text{second}[/tex]

[tex]\text{Time}=48.986486\times\text{second}[/tex]

[tex]\text{Time}\approx 49\text{ seconds}[/tex]

Therefore, it will take approximately 49 seconds for the elevator to travel from the ground floor to the roof.

factor out the five

5(x^2+5)   D

Answer:

your answer is 12

Step-by-step explanation:

5+3=8

8 x 5 / 2 - 8

5 x 8=40

40 / 2 - 8

40 / 2=20

20 - 8=12

d.

5.3066 m2

that is your answer

Nine million thirty two thousand five hundred four and seventy five hundredths.

nine million thirty-two thousand five hundred four and seventy five tenths. :)

20$ of interest 100 divided by 5= 20$$$$

(8,15) is the answer

19 years old double her age is 24 then you subtract 5. 19

Hector is 19 years old.

12 x 2 = 24 - 5 = 19

Well if you divide 30 by 10 then multiply by 4 you get 12 minutes.

Do the same for 45,

45 divided by 10 = 4.5 then multiply by 4 =  18

The number of miles the train will travel at the same speed is 18 miles

From the question,

We are to determine the number of miles the train travel in 12 minutes

From the question

It takes an express train 30 minutes to travel 45 miles

First, we will determine the speed

From the formula

[tex]Speed = \frac{Distance}{Time}[/tex]

Distance = 45 miles

Time = 30 minutes

∴ [tex]Speed = \frac{45}{30}[/tex]

Speed = 1.5 miles/mins

Now,

For the number of miles the train travel in 12 minutes

Time = 12 minutes

Using the formula

Distance = Speed × Time

∴ Distance = 1.5 × 12

Distance = 18 miles

Hence, the number of miles the train will travel at the same speed is 18 miles

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[tex]Domain:\\\\x-5\geq0\to x\geq5\\\\\sqrt{x-5}+7=11\ \ \ \ \ |-7\\\\\sqrt{x-5}=4\ \ \ \ \ |^2\\\\(\sqrt{x-5})^2=4^2\to x-5=16\ \ \ \ \ |+5\\\\\boxed{x=21}\in D\\\\[/tex]

We have the following equation:

[tex]\sqrt{x-5} +7=11[/tex]

To solve this, we first need to subtract the 7 on both sides of the equation.

[tex]\sqrt{x-5} +7-7=11-7[/tex]

The equation then becomes:

[tex]\sqrt{x-5} =4[/tex]

Now we must square both sides of the equation to get rid of the radical/square root symbol.

[tex](\sqrt{x-5})^2 =(4)^2[/tex]

Now we have a normal one step equation.

[tex]x-5=16[/tex]

Add 5 on both sides to find x.

[tex]x-5+5=16+5[/tex]

x=21

To see if this solution is true, we must substitute 21 back into the original equation.

[tex]\sqrt{21-5} +7=11[/tex]

[tex]\sqrt{16} +7=11[/tex]

[tex]4+7=11[/tex]

11=11

Therefore, the solution is true.