Josef is on a planning committee for the eighth-grade party. The food, decoration, and entertainment costs a total of $350. The committee has $75 already. If the committee sells the tickets for $5 each, at least how many tickets must be sold to cover the remaining cost of the party?

1) The standard form of the equation is 2x² - 3x = 0, a = 2 , b = -3 ,

c = 0

2) The standard form of the equation is 4x² - 15 = 0, a = 4 , b = 0 ,

c = -15

3) The standard form of the equation is 3x² - 14x - 4 = 0, a = 3 , b = -14 ,

c = -4

4) The standard form of the equation is 9x² - 11 = 0, a = 9 , b = 0 ,

c = -11

5) The standard form of the equation is 4x² - 48x - 4 = 0, a = 4 , b = -48 ,

c = -4

Step-by-step explanation:

The standard form of a quadratic equation is ax² + bx + c = 0, where

1)

∵ 2x² = 3x

- Subtract 3x from both sides

∴ 2x² - 3x = 0

∵ The coefficient of x² = 2

∴ a = 2

∵ The coefficient of x = -3

∴ b = -3

∵ There is no numerical term

∴ c = 0

The standard form of the equation is 2x² - 3x = 0, a = 2 , b = -3 , c = 0

2)

∵ 4x² - 10 = 5

- Subtract 5 from both sides

∴ 4x² - 10 - 5 = 0

- Add like terms

∴ 4x² - 15 = 0

∵ The coefficient of x² = 4

∴ a = 4

∵ There is no x term

∴ b = 0

∵ The numerical term = -15

∴ c = -15

The standard form of the equation is 4x² - 15 = 0, a = 4 , b = 0 , c = -15

3)

∵ 3(x² - 4x) = 2(x + 2)

- Simplify each side

∴ 3x² - 12x = 2x + 4

- Subtract 2x from both sides

∴ 3x² - 12x - 2x = 4

- Subtract 4 from both sides

∴ 3x² - 12x - 2x - 4 = 0

- Add like terms

∴ 3x² - 14x - 4 = 0

∵ The coefficient of x² = 3

∴ a = 3

∵ The coefficient of x = -14

∴ b = -14

∵ The numerical term = -4

∴ c = -4

The standard form of the equation is 3x² - 14x - 4 = 0, a = 3 , b = -14 ,

c = -4

4)

∵ 3x(x + 2x) = 11

- Add the terms in the bracket

∴ 3x(3x) = 11

- Simplify the left hand side

∴ 9x² = 11

- Subtract 11 from both sides

∴ 9x² - 11 = 0

∵ The coefficient of x² = 9

∴ a = 9

∵ There is no x term

∴ b = 0

∵ The numerical term = -11

∴ c = -11

The standard form of the equation is 9x² - 11 = 0, a = 9 , b = 0 ,

c = -11

5)

∵ 6x(x - 8) = 2x² + 4

- Simplify the left hand side

∴ 6x² - 48x = 2x² + 4

- Subtract 2x² from both sides

∴ 4x² - 48x = 4

- Subtract 4 from both sides

∴ 4x² - 48x - 4 = 0

∵ The coefficient of x² = 4

∴ a = 4

∵ The coefficient of x = -48

∴ b = -48

∵ The numerical term = -4

∴ c = -4

The standard form of the equation is 4x² - 48x - 4 = 0, a = 4 , b = -48 ,

c = -4

Learn more:

You can learn more about quadratic equations in brainly.com/question/9390381

#Learnwith Brainly

Answer:

0/36

Step-by-step explanation:

Answer:

0/36

Step-by-step explanation:

It is impossible to roll two dice and get a sum less than 2.

(I'm assuming this is a 6 sided die, but either way if you have more than one die this is impossible.

The lowest you can roll would be 1+1 therefore adding up to a 2.

Answer:

100 seconds

Erica and Amy are at distance of 1 km in 100 seconds

Step-by-step explanation:

They both are travelling in opposite directions so the sum of the distances they travel is the distance between them.

Let's take t as the total time taken to achieve a seperation of 1km

Distance traveled by Erica , (Speed of Erica - v1)

x1 = v1 * t

Distance travelled by Amy , (Speed of Amy - v2)

x2 = v2*t

Therefore sum of the distances they traveled is x1+x2 = x

x = v1*t + v2*t

x = t*(v1 + v2)

Here it is given that final seperation between Amy and Erica is 1km or 1000 m

Therefore x = 1000 m

Thus t = [tex]\frac{x}{v1+v2}[/tex]

Substituting given values v1 = 6 m/s v2 = 4 m/s

Therefore,

They are apart by exactly 1km in a time of 100 sec

Answer:

15 shelves

Step-by-step explanation:

6 dvds = 1 shelf

89/6= 14.8333333333 shelves

But you cannot have 0.8333333333 shelves so you would round  0.8333333333 to 1

Answer:

16 is x<3

Step-by-step explanation:

4x-10<2

Add 10 to both sides

4x<12

Divide 4 from both sides and you get x<3

Answer:

160 ounces

Step-by-step explanation:

1 pound=16 ounces

so,

10 pounds=16 multiplied by 10= 160 ounces

Fun fact u spelled ounces at the very last.

pls can I have five star

The weight of the 10-pound package is 160 ounces.

There are 16 ounces in 1 pound. Juan is mailing a packet that weighs 10 pounds. To find the weight of the package in ounces, multiply the number of pounds (10) by the unit equivalence (16).

Therefore, the weight of the package is 160 ounces.

Answer: 15

Step-by-step explanation: Linear equations can be written in the form

y = mx + b where the base "b" represents the y-intercept of the line.

So in this case, the y-intercept of the line would positive 15.

The equation can written as y = 4x + 15.

This equation is written in slope-intercept. y = mx + b

m = slope

b = y-intercept

In this equation the y-intercept (b) is 15.

_______

Best Regards,

Wolfyy :)

Answer:

11

Step-by-step explanation:

because that are 11 pencils that are 6 inches or longer, that's what the picture says.

Answer:

Helpful piece of information - each x = 1 pencil

Step-by-step explanation:

If each x = 1 pencil, and their are 6 x's over the 6 inch mark, 2 x's over the 7 inch mark, and 3 x's over the 8 inch mark, how many pencils measure 6 inches or more?

11 pencils measure 6, 7, and 8 inches.

I hope this helps!

Answer: No

Step-by-step explanation: because

1/2 +1/4 +1/3 is larger than one bowl.

6+3+4/12 = 13/12

;. 1 ¹/12.

Therefore, 1 bowl can not carry it

No, One bowl can not carry all of the ingredients at one time.

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

Chad made a snack by combining 1/3 of a bowl of granola with ¼ of a bowl of chopped banana and ½ of a bowl of yogurt.

The total amount 1/2 +1/4 +1/3 is larger than one bowl.

6 + 3 + 4/12 = 13/12

also 1 ¹/12.

Therefore, No 1 bowl can not carry it.

Learn more about the unitary method;

https://brainly.com/question/23423168

#SPJ2

Answer:

A. $3,150

B. $2,100

Step-by-step explanation:

A. Given,

Trucks cost price = $40,000

Salvage Value = $8,500

Useful life = 10 years

Since there is no requirement, I am using straight-line depreciation method to calculate the depreciation expense.

We Know,

Depreciation Expenses = (Cost price - Salvage Value) / Useful Life

Therefore,

Depreciation expense = ($40,000 - $8,500)/10

Depreciation Expense = $31,500/10

Depreciation Expense = $3,150

Therefore, under the straight-line method, the depreciation expense will be = $3,150.

B. Given, (When the useful year is 15)

Trucks cost price = $40,000

Salvage Value = $8,500

Useful life = 15 years

Since there is no requirement, I am using straight-line depreciation method to calculate the depreciation expense.

We Know,

Depreciation Expenses = (Cost price - Salvage Value) / Useful Life

Therefore,

Depreciation expense = ($40,000 - $8,500)/15

Depreciation Expense = $31,500/15

Depreciation Expense = $2,100

Therefore, under the straight-line method, the depreciation expense will be = $2,100

Answer:

Step-by-step explanation:

9/16=x/12

cross product

16x=9*12

16x=108

x=108/16

simplify

x=27/4

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

x-3/18=12/9

x=12/9+3/18

x=24/18+3/18

x=27/18

x=3/2

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

7/11=18/x+1

18/x=7/11-1

18/x=7/11-11/11

18/x=-4/11

x=18/(-4/11)=(18/1)(-11/4)=-198/4=-99/2

x=-99/2

Answer:

Part 1) The equation in slope intercept form is [tex]y=4x-8[/tex]

Step-by-step explanation:

Part 1) Write an equation in slope-intercept form for a line that passes through (3,4) (and has a y intercept of -8)

we know that

The equation of a line in slope intercept form is equal to

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

where

m is the slope

b is the y-intercept

we have

[tex]b=-8[/tex]

[tex]point\ (3,4)[/tex]

substitute

[tex]4=m(3)-8[/tex]

solve for m

[tex]4+8=3m[/tex]

[tex]3m=12[/tex]

[tex]m=4[/tex]

therefore

[tex]y=4x-8[/tex]

value of x is: [tex]x=\frac{-31}{12}[/tex]

Step-by-step explanation:

We need to solve the equation f(x)=g(x)

where [tex]f(x)=(\frac{1}{2})^2-3[/tex]

and [tex]g(x) = 3x + 5[/tex]

Solving to find f(x)=g(x)

Putting values of f(x) and g(x)

[tex]f(x)=g(x)\\(\frac{1}{2})^2-3=3x + 5\\\frac{1}{4}-3=3x + 5\\Subtarct\,\,5\,\,on\,\,both\,\,sides:\\\frac{1}{4}-3-5=3x + 5-5\\\frac{1}{4}-8=3x\\Taking\,\,LCm\,\,on\,\,left\,\,side\\\frac{1-8*4}{4}=3x\\\frac{-31}{4}=3x\\Divide\,\,both\,\,sides\,\,by\,\,3\\x=\frac{-31}{4*3}\\x=\frac{-31}{12}[/tex]

So, value of x is: [tex]x=\frac{-31}{12}[/tex]

The graph will be a straight line x= -2.58 or x = -31/12

Keywords: Composition of Functions

Learn more about Composition of Functions at:

#learnwithBrainly

Answer:

I think it was warmer

Answer:

y=-3/4x-5/4

Step-by-step explanation:

use the formula y-y1=m(x-x1)

y-4=-3/4(x-(-7))

Answer: 200cm long

Step-by-step explanation:

Let the length of the rod be x

red = 1/4 of the rod , which means 1/4 of x

orange = 2/5 of x

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

= x - ([tex]\frac{13x}{20}[/tex])

= [tex]\frac{7x}{20}[/tex]

yellow = 2/7 of the remainder , that is

yellow = 2/7 of [tex]\frac{7x}{20}[/tex]

yellow = [tex]\frac{x}{10}[/tex]

and it was given that the yellow section was 20cm long , that is

[tex]\frac{x}{10}[/tex] = 20cm

x = 20 x10

x = 200

Therefore the rod was 200cm long

To determine the length of a rod based on fractions of it being painted different colors, with the yellow section known to be 20cm, we set up a proportion based on the fractions of the rod painted and use this to solve for the total length of the rod, which is 200cm.

The subject of this question is Mathematics, and it is typically encountered at the Middle School level. To find the length of the entire rod when 1/4 is painted red, 2/5 is painted orange, and 2/7 of the remainder is painted yellow with the yellow section being 20cm, we need to set up an equation and solve for the total length of the rod.

First, we determine the fraction of the rod that remains after painting 1/4 red and 2/5 orange:

Let's start the calculations:

1. (1/4) + (2/5) = 5/20 + 8/20 = 13/20.

2. The remaining fraction = 1 - 13/20 = 7/20.

3. Let x be the total length of the rod. Since 2/7 of the remainder is 20cm, we can write the equation (2/7) * (7/20) * x = 20cm.

4. Simplify and solve for x:

(2/7) * (7/20) * x = 20cm,

(1/10) * x = 20cm,

x = 20cm * 10,

x = 200cm.

Therefore, the total length of the rod is 200cm.

Answer:

m=-1

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(3-9)/(1-(-5))

m=-6/(1+5)

m=-6/6

m=-1

Answer:

Standard Form : 3x+1y=35

Step-by-step explanation:

The equation of the line will be 3x+y-35=0

The equation of the line in standard form will be expressed by using the coefficient of x and coeficient of y which is given

ax+by+c=0

The equation of line which passes through two points will be

(y-y₁)/(x-x₁)=(y₂-y₁)/(x₂-x₁)

So according to asked question,

x₁=10,y₁=5

x₂=13,y₂=-4

the equation of line will be

(y-5)/(x-10)=(-4-5)/(13-10)

⇒(y-5)/(x-10)=-9/3

⇒(y-5)/(x-10)=-3

⇒y-5=-3(x-10)

⇒y-5=-3x+30

⇒y+3x-5-30=0

⇒3x+y-35=0

Therefore the equation of the line will be 3x+y-35=0

Learn more about equation of the line

here: https://brainly.com/question/1463082

#SPJ2

8 minutes is 2/15 of an hour when simplified, which is obtained by dividing both the numerator and denominator of the fraction 8/60 by the greatest common divisor of 8 and 60, which is 4.

To convert 8 minutes into a fraction of an hour, first understand that 1 hour is equivalent to 60 minutes. Therefore, to find what fraction 8 minutes is of an hour, you can create the ratio of 8 minutes to 60 minutes, which simplifies to:

8 minutes / 60 minutes = 8/60

This fraction can then be simplified by dividing both the numerator and the denominator by the greatest common divisor (GCD) of 8 and 60, which is 4, to obtain:

8/60 ÷ 4/4 = 2/15

Thus, 8 minutes is 2/15 of an hour in simplest form.

Answer:

No Solution.

Step-by-step explanation:

2(x-1)-y=-8

y=2x+8

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

2x-2-(2x+8)=-8

2x-2-2x-8=-8

2x-2x-2-8=-8

0-2-8=-8

-2-8=-8

-10=-8

no solution

Answer:

w ≥ 141/2

Step-by-step explanation:

12 − 4/6 w ≤ 2/8 − 3/6 w

First, combine like terms.  Add 4/6 w to both sides, and subtract 2/8 from both sides.

12 − 2/8 ≤ 4/6 w − 3/6 w

12 − 2/8 ≤ 1/6 w

Reduce 2/8 to 1/4:

12 − 1/4 ≤ 1/6 w

To get rid of the fractions, multiply both sides by 12 (the LCM of 4 and 6):

12 (12 − 1/4) ≤ 12 (1/6 w)

144 − 3 ≤ 2w

141 ≤ 2w

Divide by 2:

141/2 ≤ w

If you'd like, flip the equation:

w ≥ 141/2

Answer: 240 km

Step-by-step explanation:

From the graph :

50 miles = 80km

1 miles = 80/50 km

Therefore :

150 miles = 80/50 x 150

150 miles = 240 km

Answer:

b)−1×2×−3×4×−5 has a negative value.

Step-by-step explanation:

Given expressions are a)−1×−2  b)−1×2×−3×4×−5 C) 1×−2×−3×−4×−5 d)1×−2×3×−4×5

Firstly we have to multiply the digits with digit then after minus sign.

So for a)−1×−2

Solution, [tex]1\times2\ =2[/tex]

When two negative signs are multiplied with each other it gives a positive sign.

Both digits have a negative sign that means it gives a positive sign.

So the solution for 1st expression is [tex]2.[/tex]

b)−1×2×−3×4×−5

Solution,[tex]1\times2\times3\times4\times5\ =120[/tex]

Here three digits have negative sign, two negative gives positive and then multiplied by negative gives negative.

So the solution for 2nd expression is [tex]-120[/tex].

C) 1×−2×−3×−4×−5

Solution,[tex]1\times2\times3\times4\times5\ =120[/tex]

Here four digits have negative sign, two negative gives positive and again two negative gives positive means positive multiplied with positive gives positive.

So the solution for 3rd expression is [tex]120[/tex].

d)1×−2×3×−4×5

Solution,[tex]1\times2\times3\times4\times5\ =120[/tex]

Two digits have a negative sign that means it gives a positive sign.

So the solution for 4th expression is [tex]120[/tex].

Hence the correct option is b.

Answer:

B

Step-by-step explanation:

Answer:

[tex]\dfrac{4}{27}[/tex]

Step-by-step explanation:

A bag contains 8 blue marbles 6 red marbles and 4 green marbles, 8 + 6 + 4 = 18 marbles in total.

The probability of selecting a blue marble is

[tex]P(\text{blue marble})=\dfrac{\text{Number of blue marbles}}{\text{Total number of marbles}}=\dfrac{8}{18}=\dfrac{4}{9}[/tex]

Then the blue marble was replaced in the bag.

The probability of selecting a red marble is

[tex]P(\text{red marble})=\dfrac{\text{Number of red marbles}}{\text{Total number of marbles}}=\dfrac{6}{18}=\dfrac{1}{3}[/tex]

The probability of selecting a blue marble replaced it in the bag and then selecting a red marble is

[tex]P=\dfrac{4}{9}\cdot \dfrac{1}{3}=\dfrac{4}{27}[/tex]

Answer:

I think the simplified answer is 7.69

The price of house is $185000.

Step-by-step explanation:

The percentage formula will be used for finding the price of the house

Given

Down payment = $25900

Percentage = 14%

Let x be the price of the home

Then

[tex]Down\ payment=14\%\ of\ x\\\\25900=0.14 * x\\\\x = \frac{25900}{0.14}\\\\x =185000[/tex]

Hence,

The price of house is $185000.

Keywords: Down payment, percentage

Learn more about percentage at:

#LearnwithBrainly

Answer: X = 4.33

Step-by-step explanation:

cos angle = hypotenuse / opposite side

cos 30° = X/5

0.866 = X/5

X = 4.33

The total number of nails will decrease by 14 nails when Willa will use 7 nails on each side.

Step-by-step explanation:

Sides of one birdhouse = 7

Nails used on each side = 9

Nails used on one birdhouse = Nails per side * Sides of birdhouse

Nails used on one birdhouse = 9*7 = 63 nails

If she uses 7 nails on each side, then the number of nails used on one birdhouse;

No. of nails = 7 * 7 = 49 nails

Change = Nails used on one birdhouse - No. of nails

Change = 63 - 49 = 14

The total number of nails will decrease by 14 nails when Willa will use 7 nails on each side.

Keywords: multiplication, subtraction

Learn more about multiplication at:

#LearnwithBrainly

Each birdhouse needs 63 nails. If Willa uses only 7 nails on each side, she will need a total of 49 nails.

Each side of the birdhouse requires 9 nails, and there are 7 sides on the birdhouse. To find the total number of nails needed for each birdhouse, we can multiply the number of nails per side by the number of sides:

9 nails/side x 7 sides = 63 nails needed for each birdhouse.

If Willa only uses 7 nails on each side, the total number of nails she uses will change. The new total number of nails can be found by multiplying the new number of nails per side (7 nails) by the number of sides (7 sides):

7 nails/side x 7 sides = 49 nails in total.

https://brainly.com/question/14106822

#SPJ11

Answer:

[tex]x=-\frac{88}{3}[/tex]

Step-by-step explanation:

When a quantity "A" varies DIRECTLY with another quantity "B", we can write the proportionality equation as:

A = kB

Where k is the proportionality constant (to be found)

In this problem, it is given x varies DIRECTLY with y, so we can write:

x = ky

Also, given, x = 11, y = -3, so we plug these into the equation and first find k:

x = ky

11 = k(-3)

k = -11/3

Now, we need to find x when y = 8, so we substitute and find x:

[tex]x=ky\\x=(-\frac{11}{3})(8)\\x=-\frac{88}{3}[/tex]

To find x for a given value of y when x varies directly as y, determine the constant of proportionality using the provided pair of values. Then use this constant to calculate x for the new value of y.

Since x varies directly as y, we can write this as x = ky, where k is the constant of proportionality. To find the value of k, we use the given values: x=11 when y=-3. Substituting these values into the equation gives us 11 = k(-3), or k = -11/3.

To find x when y=8, we substitute y=8 and the value of k into the direct variation equation: x = (-11/3)(8) = -88/3 = -29.33. Therefore, x is approximately -29.33 when y=8.