What is the equation?

Answer:

i think you got them right

Step-by-step explanation:

Answer:

2L + 3W =54

4L + W = 48.

Step-by-step explanation:

Given

L = Large one-topping Pizzas

W = Dozen Wings

From the first statement; we have that:

2L and 3W cost $54.

The expression for this is:

2L + 3W =54

From the second statement; we have that:

4L and 1W cost $48.

The expression for this is:

4L + W = 48.

Hence; The system of equations is

2L + 3W =54

4L + W = 48.

Answer:

Step-by-step explanation:

A ratio is used in scale drawings of maps and buildings.  

That is:

The scale of a drawing = Drawing Length : Actual Length

A scale is usually expressed in one of two ways:

-using units as in 1 cm to 1 km

-without explicitly mentioning units as in 1 : 100,000.

A scale of 1 : 100,000 means that the real distance is 100,000 times the length of 1 unit on the map or drawing.

In your case, where the room has a length of 7m and 1cm on the diagram:

1 cm to 7m = 1cm : 7m

                  = 1cm : 700cm

                  = 1 : 700

Answer:

9.72 seconds

Step-by-step explanation:

9.72 seconds ( approx )

Step-by-step explanation:

Since, the equation that shows the height of the rocket from the ground,

Where,

x = time after launch, in seconds,

When the rocket hits the ground,

y = 0,

i.e.

By the quadratic formula,

∵ Time can not be negative,

So, the time taken to hit the ground = 9.716 seconds ≈ 9.72 seconds.

The time at which the rocket will hit the ground to the nearest hundredth of seconds is 15 seconds.

An algebraic equation of the second degree in x is a quadratic equation. The quadratic equation is written as ax2 + bx + c = 0, where x is the variable, and a must not be zero.

As per the given height of tower y in terms of time is seconds x

y = -16x² + 240x + 115

The height of the tower when the rocket hit the ground will be zero.

Thus, y = 0

0 = -16x² + 240x + 115

16x² - 240x - 115=0

By quadratic equation formula,

x = [-(-240) ± √((-240)²+4×16×(-115))]/ 2×16

x = [240 ± 254.8725]/32

x = 15.46 and x = -0.46 since time can be never negative thus 15.46 seconds will be correct.

15.46 to the nearest hundred is 15.

Hence "The time at which the rocket will hit the ground to the nearest hundredth of seconds is 15 seconds".

For more about the quadratic equation,

https://brainly.com/question/17177510

#SPJ5

Step-by-step explanation:

Slope = y2 - y1

x2 - x1

So, 4 - 0

8 - 6

= 4

2

Slope = 2

y - 4 = 2(x - 8)

y - 4 = 2x - 16

y = 2x - 12

y-intercept:

y = 2(0) -12

y = -12

x-intercept:

(0) = 2x - 12

12 = 2x

12/2 = x

6 = x

Domain: {0, 2, 4, 6, 8}

Range: {-12, -8, -4, 0, 4}

Hope this helps!

Good luck!

Answer:

x = 8.5

Step-by-step explanation:

I got this answer by assuming the triangles were congurent, if they are not, the answer may vary.  

first, make an equation:

x + 8 = 3x - 9

bring 3x to the other side, by subtracting it

-2x + 8 = -9

Subtract 8

-2x = -17

divide by -2

x = 8.5

Then, just sub x into the formulas

Answer:

96 hours

Step-by-step explanation:

25 eyes - 2 hours

1200 eyes* - x hours

[tex]x = \frac{2 \times 1200}{25} [/tex]

[tex]x = 96[/tex]

*each student has 2 eyes. So 600 students have 600×2=1200 eyes.

It will take the nurse 48 hours to give eye tests to all 600 students in her school.

An expression is combination of variables, numbers and operators.

If the nurse can give 25 eye tests in two hours, then she can give 12.5 tests in one hour (since 25 divided by 2 equals 12.5).

To give eye tests to all 600 students, the nurse will need to give 600 tests in total.

Using the rate of 12.5 tests per hour, we can set up a proportion:

12.5 tests / 1 hour = 600 tests / x hours

Apply Cross-multiplication

12.5 tests ×  x hours = 600 tests

Divide both sides by 12.5 tests

we get,  x hours = 600 tests / 12.5 tests per hour

x hours = 48 hours

Therefore, it will take the nurse 48 hours to give eye tests to all 600 students in her school.

To learn more on Expressions click:

https://brainly.com/question/14083225

#SPJ7

Answer:

Step-by-step explanation:

[tex]x^2+7x+10=0\qquad\implies\quad a=1\,,\ b=7\,,\ c=10\\\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-7\pm\sqrt{7^2-4(1)(10)}}{2(1)}=\dfrac{-7\pm\sqrt{49-40}}{2}=\dfrac{-7\pm\sqrt9}{2}\\\\ x_1=\dfrac{-7+3}2=\dfrac{-4}2=-2\,,\qquad x_1=\dfrac{-7-3}2=\dfrac{-10}2=-5[/tex]

Answer:

2 <= to x <= 5

Step-by-step explanation:

/////////////

Answer:

the answer is 4 hours

Answer:

3 hours

Step-by-step explanation:

Since you payed 10 dollars you would take out $6 first then divide 4 by 2 which gives you two so two plus the first hour gives you 3 hours

Answer:

∠LMN = 167°

Step-by-step explanation:

∠LMT = 23°

∠TMN = 144°

∠LMN = ∠LMT + ∠TMN

∠LMN = 23° + 144°

∠LMN = 167°

Answer:

Hello!

The probability that the number chosen is greater then 3 and odd is 2/8

There are 5 numbers greater then 3, and of those 5, five and seven are the only odd numbers. So that is 2/8

Step-by-step explanation:

There are 5 numbers greater then 3, and of those 5, five and seven are the only odd numbers. So that is 2/8

If you are only talking about the numbers that are actually greater then 3 as your population, it is 2/5 :)

(I would appreciate Brainliest, please and thanks)

If a number randomly chosen is greater than 3, the probability that the number is odd is 2/5

The set of numbers is given as:

Set =  {1, 2, 3, 4, 5, 6, 7, 8}.

The numbers greater than 3 are:

G3 =  {4, 5, 6, 7, 8}

The odd numbers greater than 3 are

OG3 =  {5, 7}

The required probability is then calculated using:

P = n(OG3)/n(G3)

This gives

P = 2/5

Hence, the probability is 2/5

Read more about probability at:

https://brainly.com/question/251701

#SPJ2

Answer:

this

Step-by-step explanation:

Answer:

y = -2

Step-by-step explanation:

y-intercept is the point of y at which x is zero

so it is (0,-2) when y= -2

Hope it helps!

Answer:

2 tickets

Step-by-step explanation:

To be the same they must equal each other.

4.50 + 0.65x = 0.40x + 5

isolate the variable

subtract 4.50 from both sides

0.65x = 0.40x + 0.50

subtract 0.40x from both sides

0.25x = 0.50

divide both sides by 0.25

x = 0.50 ÷ 0.25

x = 2

Answer:

B.

Step-by-step explanation:

If x squared is 60, then you would have to find the root of 60 to find the value of x.

Hope I helped :)

Please consider Brainliest :)

Answer:

I just took the test the answer is B. +or - the square root of 60

Step-by-step explanation:

Answer:

Angles 2 and 11 are alternate interior angles I believe

Hope this helped!

Answer:

D.

Step-by-step explanation:

Since they are both the same angle measures, they are congruent, and also corresponding since they are located on the same side and half of the different lines.

Answer:

hello darkness

Step-by-step explanation:

Answer:

if you are into emo pop punk like me i would suggest the album "Best Buds" by mom jeans.

Step-by-step explanation:

Answer:

X = 34

Step-by-step explanation:

3x+44+x=180

4x+44=180

4x=136

x=34

hope this helps! :)

Answer:

Step-by-step explanation:

First year salary

Annual pay rise

Functional relationship

It is going to be an exponential function as every year salary will increase 1.03 times

Answer:

b

Step-by-step explanation:

It is better to use the metric system, rather than the English system, in scientific measurement because,

The metric system uses one unit for each category of measurement.

A system of measurements is called the metric system. It is employed in calculations and research across the globe.

Measurements for length include millimeters (mm), decimeters (dm), centimeters (cm), meters (m), and kilometers (km).

A foot equals 30.48 cm, however, a popular 30 cm rule measures every 1 cm, therefore the metric system also provides more exact measurements.

The English system is in fact based on the metric system because they look for reference materials to get the measurements.

learn more bout the metric system here :

https://brainly.com/question/25966695

#SPJ2

Answer:

u didnt put questions

Step-by-step explanation:

Answer:(0.5,2.5) (0,0)

Step-by-step explanation:

Answer:

A & C  

aka: (0.5, 2.5)  & (0, 0)

Step-by-step explanation:

Took the question on edge and got it correct.

Hope it helps (^-^)

Answer:

D

Step-by-step explanation:

[tex]{a}^{2} + {b}^{2} = {c}^{2} [/tex]

[tex] {27}^{2} + {36}^{2} = 2025 \\ {45}^{2} = 2025[/tex]