Solving Systems of Equations by Graphing - Scavenger Hunt

Answers

Answer 1
Where’s the question

Related Questions

(25,-14) (-3,7)
determine the slope

Answers

-3/4
y2-y1/x2-x1
7– -14/-3-25=21/-28=-.75=-3/4

3y + 8 = I 7
Also can you show me the written steps?

Answers

3y=17-8
3y=9 Divide 9 and 3
Y=3

Solve the system of equations by substitution. x + y = 27 y = 8x​

Answers

Answer: x = 0, y = 0

Step-by-step explanation:

x + y = 27y = 8x

Consider the first equation. Subtract 27y from both sides.

x + y = -27y = 0

Combine y and -27y to get -26y

x - 26x = 0

Consider the second equation. Subtract 8x from both sides.

27y - 8x = 0

To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for the variable in the other equation.

x - 26y = 0, -8x + 27y = 0

Choose one of the equations and solve it for x by isolating x on the left hand side of the equal sign.

x - 26y = 0

Add 26y to both sides of the equation.

x = 26y

Substitute 26y for x in the order equation,

-8x + 27y = 0.

-8 x 26y + 27y = 0

Multiply -8 times 26y

-208y + 27y = 0

Add -208y to 27y

-181y = 0

Divide both sides by -181.

y = 0

Substitute 0 for y in x = 26y. Because the resulting equation contains only one variable, you can solve for x directly.

x = 0

Determine the given equation is a linear equation write yes or no. If yes, write the equation in standard form.
7n - 8m = 4 - 2m.
Use Standard form

Answers

Answer:

The equation is linear. Standard form:

7n - 6m - 4 =0

Step-by-step explanation:

Linear Equations

The linear equations are identified because all terms form a polynomial of degree 1 or zero (no variable).

The standard form of a linear equation is:

ax+by+cz+d=0

where x, y, z are the variables, and a,b,c are constants.

The equation:

7n - 8m = 4 - 2m

Is linear, both variables have an exponent of 1 and there is an independent term. Moving all terms to the left side:

7n - 8m - 4 + 2m =0

Simplifying:

7n - 6m - 4 =0

which polynomial function has zeros when x= -2, 3/4, 5

Answers

Answer: f(x)=(x+2)(4x-3)(x-5)

Step-by-step explanation:

Alg2.2.5 practice 2

Polynomial function has zeros when  x=[tex]-2, \frac{3}{4} , 5[/tex] is

[tex]4x^3-15x^2-31x+30[/tex]

Given :

polynomial function has zeros when x= -2, 3/4, 5

Lets write the zeros in factor form

If 'a' is a zero , then factor is (x-a)

The given zeros are [tex]-2, \frac{3}{4} , 5[/tex]

lets write all the three zeros in factor form

[tex](x-(-2)) (x-\frac{3}{4})(x-5)\\(x+2)(4x-3)(x-5)[/tex]

Now multiply the parenthesis to get the polynomial

[tex]\left(x+2\right)\left(4x-3\right)\left(x-5\right)\\\left(4x^2+5x-6\right)\left(x-5\right)\\4x^2x+4x^2\left(-5\right)+5xx+5x\left(-5\right)-6x-6\left(-5\right)\\combine \; like \; terms\\4x^3-15x^2-31x+30[/tex]

polynomial function has zeros when x= -2, 3/4, 5 is

[tex]4x^3-15x^2-31x+30[/tex]

Learn more : https://brainly.com/question/21970844

For a school fund-raiser, students sold T-shirts with the school logo for $14. PLEASE HELP!
They sold sweatshirts with the school logo for $20.
They sold 233 pieces of clothing and raised $3,748.
How many of each type of shirt did they sell at the fund-raiser?
Let x = the number of T-shirts sold.
Let y = the number of sweatshirts sold.

Answers

Answer:

The 3 problem

Step-by-step explanation:

Answer:

The answer is C) x+y = 233, 14x + 20y = 3748

Step-by-step explanation:

x(number of t-shirts sold) + y(number of sweatshirts sold) = 233 (total number of pieces of clothing sold)

14x (14 is the cost of each t-shirt and since x = number of t-shirts sold then it is 14x or 14 multiplied by number of t-shirts sold) + 20y (20 is the cost of each sweatshirt and since y = number of sweatshirts sold then it is 20y or 20 multiplied by number of sweatshirts sold) = 3748 (total of money raised)

find the equation of the line shown
how do you do this ?

Answers

Answer:

y=1/2x+0.5

Step-by-step explanation:

The slope is 1/2, which you can see by looking at the change of y/x. The y intercept is 0.5, which can be seen on the y axis.

Evaluate the function for f(-9 if (x) = 3/5 x + 8

A. 67/5
B. -67/5
C. -13/5
D. 13/5

Answers

Answer:

D

Step-by-step explanation:

f(-9) = 3/5(-9) + 8 = 13/5

which equation matches the graph
A.y=4/3x+6
B.y=3/4x+6
C.4y-3x=12
D.3x-4y=12

Answers

Answer:

B. y=3/4x+6

Step-by-step explanation:

tttttttttttttt

Answer: B

Step-by-step explanation: the y-intercept is always the b in the equation y=mx+b. in this case it’s 6. Then you look at the rise and the run. its 3/4 because you go up 3 units, and to the right 4 units, to get to the next coordinate point.

What are both of these shaded as?

Answers

Answer:

1 whole and 15/100= 1.15

Step-by-step explanation:

The first box is 1 whole, in total there are 100 squares. All u need to do is count the number of squares

please help!! 30 pts! thanks!

Answers

Answer:

Eu não sei cara, sinto muito, cara, não me denuncie ou você é apenas um idiota metido

Step-by-step explanation:

Eu não sei cara, sinto muito, cara, não me denuncie ou você é apenas um idiota metido

2/B that’s all I know sorry.

Solve:
x/4 - x/8 = 5

Answers

Answer:

x=40

Step-by-step explanation:

x/4 - x/8

LCM of 4,8=8

x/4x2/2 - x/8=5

2x/8 - x/8 =5

x/8=5

transpose

x=5x8

x=40

hope this helps

please mark as brainliest

Someone pls help me!!! (7th grade math work) will mark as Brainliest
SHOW WORK PLSSSSKSKSKS

Answers

Answer:

J.    42 =   x         57     100

Step-by-step explanation:

last year won 57 games

this year won 15 games

the difference is 57 - 15 = 42,

this means it drops 42 / 57 = 0.73 (100%)  ≈ 73%

therefore,  the percentage decrease from the given choices is: J

42 =   x  

57     100

What is P in 3 +
p=8




Btw thanks for the help ❤️

Answers

Answer:

5

Step-by-step explanation:

Write an equation to represent the following statement.
j divided by 9 is 5.
Solve for j.
j=

Answers

Answer:

J= 45

Step-by-step explanation:

You have to multiply 5 by 9 to get what J is.

what id the greatest common factor shared by 24 and 54

Answers

Answer:

6.

Step-by-step explanation:

can i get some help plz its hared

Answers

Reflection, then rotation

⚠️⚠️ What’s the coordinate numbers for A and B ⚠️⚠️

PLEASEE I WANNA FINISH

Answers

Answer:

A (-2,-3) B (3,-3)

Step-by-step explanation:

I took math in high school

Answer:

The coordinate numbers are A (-2,-3) B(3,-3)

For a school art project, Kali has 604 square tiles measuring 1 inch on each side. She plans to use the tiles to completely cover the box in the shape of a rectangular prism shown below. (FORMULA: Surface Area = 2lw + 2lh + 2wh) Which statement about Kali's tiles is true? Group of answer choices Kali needs 476 more tiles to completely cover the box. Kali needs 104 more tiles to completely cover the box. Kali will have 534 tiles left after completely covering the box. Kali will have 250 tiles left after comp

Answers

Answer:

Kali needs 104 more tiles to completely cover the box.

Step-by-step explanation:

Length of box =  20 in

Breadth of box = 6 in

Height of box= 9 in

Total surface area of box = 2lw + 2lh + 2wh

Total surface area of box = 2(20)(6) + 2(20)(9) + 2(6)(9)

Total surface area of box = 708 sq. in.

Side of tile = 1 in

Area of 1 tile = [tex]Side^2 = 1^2 = 1 sq. in[/tex]

Area of 604 tiles = 604 sq. in.

Area remain uncovered = 708 - 604 = 104 sq.in.

So, Kali needs 104 more tiles to completely cover the box.

Help me solve this problem please

Answers

Option C, a = (w - 4b )/7 is the correct answer

w = 7a + 4b

7a = w - 4b

a = (w- 4b )/7

i will make you brainlliest whoever answers this right and will give you points Please help me i am having a hard time
Evaluate 14 + (-8) ÷ 2 · -3.

26
-9
-30
15

Answers

14 + (-8) / 2 x -3

Follow order of operations: divide and multiply from left to right:

-8/2 = -4 x -3 = 12

Now you have 14 + 12

The answer is 26

Answer:

26

Step-by-step explanation:

14+(-8) ÷ 2 (-3)

14+ (-4)(-3)

14+12

26

I will make you brainlliest and give you some points please help me i need help.
Thanks:)!!


Simplify -9(10 + 2).

-88
-72
-92
-108

Answers

Answer:

-108 is the correct answer

Step-by-step explanation:

=-9(10+2)

=-90+(-18)

=-90-18

= -108

Answer:

It's D or -108 (✿◠‿◠)



The model of a rugby field is shown. Sarah ran across the length of
the field 5 times for conditioning practice. How far did Sarah run in all?
27 cm
14 cm
Scale
1 cm: 7 m
945 meters
490 meters
378 meters
921 meters
Plzzzzzzzzzz help me

Answers

Answer:

27x7=189.

189x5= ***945cm***

Corresponding angles?


Helo im trying to pass

Answers

Answer:

Corresponding angles are

1 and 3

or 5 and 7

or 2 and 4

or 6 and 8

Step-by-step explanation:

Ryan and his brother are at a carnival. They separate from each other at the ferris wheel at 1:00 PM, and they agree that they will each meet back at the ferris wheel from time to time to see whether the other is ready to leave. Ryan checks the ferris wheel every 15 minutes. His brother checks in every 24 minutes. At what time will they meet at the ferris wheel again. (Hint: Don't forget you're looking for a time)

Answers

Answer:

3:00pm

Step-by-step explanation:

The idea hear is to find the least common multiples of 15 and 24

Given that they separated at exactly 1:00pm

the multiples are

15= 15,30,45,60,75,90,105,120

24= 24, 48,72,96,120

the multiples common is 120

Therefore they will meet in 120minute, which is 2 hours time \

hence the time will be 3:00pm

Which points lie on the line y= -1/2x +4?
A) (-2,5) and (2,3)
B) (0,6) and (1,4)
C) (-2,5) and (4,3)
D) (-2,3) and (0,2)

Which answer choice is the equation of a line that passes through the points (1.-3) and (-1,3)? A) y = -1/3
B) -3y = x + 1
C) y = 3x
4) 3x + y = 0​

Answers

Question #1

first, you need to find the slope. Use the formula: m=(y₂-y₁)/(X₂-X₁). Plug in x and y values. once you have found the slope, use point-slope form;

(y-y₁)=m(x-x₁). Again, plug in x and y values. Simplify the equation. Do that with the coordinate pairs, to see which one matches y=-1/2x+4. The answer though is A, (-2,5) and (2,3).

Question #2

Do the same thing, find the slope using the formula, and then use point-slope form. After that, find the matching equation and that's the answer. I am confused though because the right equation would be [tex]y=-3x[/tex], but that's not one of the answers.

PLEASE HELP!! Brainliest to first answer

Part A: An archer shoots an arrow into the sky where the motion of the arrow can be modeled by the equation() = −5^2 + 20 + 4. Where t is time in seconds and f(t) is height in feet. Find how long it will take the arrow to hit the ground using an algebraic method. Round to the nearest tenth if necessary. Show all of your reasoning used with this algebraic method.

Part B: Using the information in Part A, find how high the arrow will go at its maximum height, and how long it takes for this to occur using an algebraic method. Show all of your reasoning used with this algebraic method. Round to the nearest tenth if necessary.

Answers

Answer:

The arrow will take 4.19 seconds to hit the ground

The arrow will go 24 feet to reach its maximum height and it takes 2 seconds to reach this height

Step-by-step explanation:

The quadratic function is f(t) = -5t² + 20t + 4, where

f(t) is the height in feet

t is the time in seconds

If the arrow hit the ground that means h(t) = 0

→ Substitute h(t) by 0 and use the quadratic formula to find t

∵ h(t) = 0

∴ 0 = -5t² + 20t + 4

→ Switch the two sides

∴ -5t² + 20t + 4 = 0

→ Multiply all terms by -1 to make the coefficient of t² positive

5t² - 20t - 4 = 0

→ The quadratic formula is [tex]t=\frac{-b+-\sqrt{b^{2}-4ac}}{2a}[/tex] , where

a is the coefficient of t²b is the coefficient of tc is the numerical term

∵ a = 5, b = -20, c = -4

∴ [tex]t=\frac{-5+-\sqrt{(-20)^{2}-4(5)(-4)}}{2(5)}[/tex]

∴ [tex]t=\frac{-5+-\sqrt{400+80}}{10}[/tex]

→ Find the values of t in decimal

t = 4.19 seconds OR t = -0.19refused because it is negative

The arrow will take 4.19 seconds to hit the ground

The graph of this quadratic function is a parabola with maximum vertex (h, k), where

h = [tex]\frac{-b}{2a}[/tex]k = f(h)

To find the maximum height and the time taking for this to occur find h and k where k is the maximum height and h is the time for this to occur

∵ f(t) = -5t² + 20t + 4

∵ a = -5 and b = 20

∴ h = [tex]-\frac{20}{2(-5)}=-\frac{20}{-10}=2[/tex]

The time for the maximum height is 2 seconds

→ Now use it to find k

∵ k = f(h)

∴ k = f(2)

∵ f(2) = -5(2)²+ 20(2) + 4

∴ f(2) = -5(4) + 40 + 4

∴ f(2) = -20 + 40 + 4

∴ f(2) = 24

∴ k = 24

The maximum height is 24 feet

The arrow will go 24 feet to reach its maximum height and it takes 2 seconds to reach this height

n-4=20
What is the answer.?

Answers

Answer:

n=24

Step-by-step explanation:

add 4 to both sides

Answer:

n =24

Step-by-step explanation:

[tex]n-4=20\\\\\mathrm{Add\:}4\mathrm{\:to\:both\:sides}\\n-4+4=20+4\\\\Simplify\\\\n = 24[/tex]

Incentive programs offered by 4 different retail stores are listed below.


Store 1: 25% off your total purchase


Store 2: $10.00 off every $50.00 you spend


Store 3: Mail in rebate of $40.00 off your total purchase


Store 4: 10% off your total purchase



Which store offers the best deal if you are purchasing $145.00 in merchandise?

Answers

Answer:

Store three with $105.00

Step-by-step explanation:

The table represents a linear function.

[ x y ]
-----------
-2 8
-1 2
0 -4
1 -10
2 -16
-----------

What is the slope of the function?
–6
–4
4
6​

Answers

Answer: -6

See attached picture

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