some help please ???????????

Answer:

3x-4y = 16

Step-by-step explanation:

well, the original price was "x", which oddly enough is the 100%, we also know that 25% off that is 30 bucks, so namely 100% - 25% = 75%, is 30 bucks, so

[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} x&100\\ 30&75 \end{array}\implies \cfrac{x}{30}=\cfrac{100}{75}\implies \cfrac{x}{30}=\cfrac{4}{3} \\\\\\ 3x=120\implies x=\cfrac{120}{3}\implies x=40[/tex]

Answer:

$ 8902.72

Step-by-step explanation:

We would like to calculate the money which we need to invest at 3.3% rate compounded annually for two years . We know that ,

[tex]\longrightarrow \boldsymbol{ A = P \bigg(1+\dfrac{R}{100}\bigg)^n } [/tex]

where the symbols have their usual meaning . So here ,

[tex]\longrightarrow \$ 9500 = P \bigg( 1+\dfrac{3.3}{100}\bigg)^2\\ [/tex]

Simplify RHS ,

[tex]\longrightarrow \$ 9500 = P \bigg(\dfrac{100+3.3}{100}\bigg)^2\\[/tex]

Simplify Nr . in RHS ,

[tex]\longrightarrow \$ 9500 =P\bigg(\dfrac{103.3}{100}\bigg)^2\\ [/tex]

Isolate P ,

[tex]\longrightarrow P = \dfrac{ \$9500\times 100\times 100}{103.3\times 103.3}\\[/tex]

Simplify ,

[tex]\longrightarrow \underline{\underline{\boldsymbol{ P = \$ 8902.72 }}}{} [/tex]

And we are done !

[tex]\bold{Formula: A = P(1 + \frac{r}{100})^{(n)}}[/tex]

Where

[tex] \bold{Solution : } \\ \\ \: \: \: \: \tt \: A = 9,500(1+\frac{3.3\%}{100})^{(2)} \\ \: \: \: \: \: \: \tt \: A = 9,500(1+ 0.033)^{(2)} \\ \tt \: A = 9,500(1.033)^{(2)} \: \: \\ \tt \: A = 10,137.34 \qquad \: \: \: [/tex]

therefore,I need $10,137.34 if would like to purchase the car.

Answer:

Additive property of equality states that if we add or subtract the same number to both sides of an equation, the sides remain equal.

Given the number of firefighters and the average salary, the total salary altogehter is about $1.35 x 10^10

Scientific notation is used simplify large numbers into smaller numbers. In order to transform a number into a scientific notation, the number is written as a decimal number, between 1 and 10 and multiplied by a power of 10.

3 x 10^5 x 4.5^4 = 13.5 x 10^9

= 1.35 x 10^10

To learn more about scientific notation, please check: brainly.com/question/25334755

Step-by-step explanation:

Answer B

7 × 4=28

8×3=24

Thank me later

Answer:

A

Step-by-step explanation:

Addition Property of Equality

If two expressions are equal to each other, and you add the same value to both sides of the equation, the equation will remain equal.

Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!

Answer:

the first one

Step-by-step explanation:

tttt

Answer:

b

Step-by-step explanation:

you aint got enough information

30% of the final exam

70% of final exam:-

Answer:

41

Step-by-step explanation:

2+4+2+ 6+4+5+4+6+3+2+2+1= 41

plz mark brainleist

[tex]\huge\boxed{41.}[/tex]

[tex]2+4+2+ 6+4+5+4+6+3+2+2+1=\boxed{?}[/tex]

[tex]\left[\begin{array}{ccc}2+4=6\\6+2=8\\8+6=14\\14+4=18\\18+5=23\\23+4=27\\27+6=33\\33+3=36\\36+2=38\\38+2=40\\40+1=40\end{array}\right][/tex]

[tex]\huge\boxed{41.}[/tex]

[tex]\boxed{-----------------------------------}[/tex]

[tex]\boxed{Hope\;i\;helped!}\\\\\\\\\huge\boxed{Thanks,Plip.}[/tex]

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Answer:

=12x+28

Step-by-step explanation:

Answer:

the points: T(-6,-8)  U(-1,-4)  V(0,7)  W(5,5)  X(-7,3)  Y(2,5)  Z(6,0)

Hope this helps!

Answer: 0.125

Step-by-step explanation: Trust me

Snap ~ daddy_shadet

Answer:

itz 5.5

Step-by-step explanation:

i just got it right

The number of rectangles in the paintings shown is: 7 rectangles.

A rectangle is a quadrilateral shape with four sides and four angles.

A rectangle has two opposite sides that are equal to each other and are parallel as well. Also, the interior angles formed by the sides are right angles.

Thus, from the paintings there are:

Therefore, the number of rectangles in the paintings shown is: 7 rectangles.

Learn more about rectangles on:

https://brainly.com/question/166401

The distance droved by Charlie is about 38 miles

An equation is an expression that shows the relationship between two or more numbers and variables.

The distance between San Antonio and Houston is 190 miles. Nicholas and Rose each drove 2/5 of the total distance.

Distance droved by Nicholas = Distance droved by rose = (2/5) * 190 = 76 miles

Distance droved by Charlie = 190 - 76 - 76 = 38 miles

The distance droved by Charlie is about 38 miles

Find out more on equation at: https://brainly.com/question/2972832

Answer:

x = -20.6

Step-by-step explanation:

Step 1: −5x − 25 − 25 = 78 − 25

Should be

Step 1: -5x-25+25=78+25

Step 2: -5x=103

Step 3: Divide both sides by -5: x = -20.6

Answer:

Option A. Step 1: She should have added 25 to each side

Step-by-step explanation:

I got it right on my quiz :)

Answer:

£ 45.6

Step-by-step explanation:

Number of adults ⇒ 12

Number of children ⇒ 26

Total cost of tickets ⇒ £ 1804.80

Cost of an adult's ticket ⇒ £ 51.60

Cost of a ticket for child ⇒ ?

Let the cost of a ticket for child be x.

Therefore,

Total cost = cost of tickets for adults + cost of tickets for children

Total cost = (No. children × Cost of a ticket) + (No.adults × Cost of a ticket)

£ 1804.80 = 26x + 12 × £51.60

1804.80  = 26x + 619.2

1804.80 - 619.2 = 26x

1185.6 = 26x

Divide both sides by 26.

45.6 = x

So,

Cost of a ticket for child is £45.6

Step-by-step explanation:

12 x 51.60 you get the total cost for the adult tickets and all thats left is the total cost - adult ticket cost and then you get the child ticket wirth now all thats left is childs ticket cost % 26

Answer:

84 decreased to 21 is 25%

Answer:

x=9/6

Step-by-step explanation:

[tex] \frac{20}{16 } = \frac{12}{x} [/tex]

12×16=192

192÷20=9.6

Answer:

$530

Step-by-step explanation:

6% of 500 is 30. Add 500 and 30.

Answer:5/12

Step-by-step explanation:

1/3=4/12

1/4=3/12

=7/12

12/12-7/12=5/12

Answer:

g(x) = - 16x² + 100

Step-by-step explanation:

Given the model:

First drop:

h(x) = - 16x² + 4

Second drop hits the ground 2 seconds later

Function g(x) to model the second drop:

-16t² + V0t + h0

h(x) = - 16x² + 4

0 = - 16x² + 4

16x² = 4

x² = 4/16

x² = 1/4

x = 1/2

2 seconds later :

X = 1/2 + 2

x = 2.5

0 = - 16(2.5)² + 0 + h0

0 = - 100 + h0

h0 = 100

Hence,

g(x) = - 16x² + 100

Answer:

The integers are the whole numbers, both positive and negative. The next integer after 5 is 6, so there is no integer between them. Since 5 and 6 are consecutive numbers, it is not possible to squeeze another integer between them. So, the answer is none.

Step-by-step explanation:

please mark me brainliest

Hey there!

-5 between (-6)

= -5 - (-6)

= -5 + 6

= 1

Therefore, your answer is: 1

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

x = 11

y = 17

Step-by-step explanation:

We know that opposite angles (or vertical angles) are equal.

So

8x + 7 = 9x - 4

Subtract 8x from both sides of the equation

8x - 8x + 7 = 9x - 8x - 4

7 = x - 4

Add 4 to both sides of the equation

7 + 4 = x - 4 + 4

11 = x

Looking at the other 2 angles,

5y = 7y - 34

Subtract 7 y from both sides of the equation

5y - 7y = 7y - 7y - 34

-2y = -34

Divide both sides by -2

-2y/-2 = -34/-2

y = 17

Answer:

Step-by-step explanation:

Vertically opposite angles are equal.

8x + 7     = 9x - 4          {Add 4 to both sides}

8x + 7 + 4 = 9x

    8x  + 11  = 9x           {Subtract 8x from both sides}

            11 = 9x - 8x

x = 11

7y - 34 = 5y        {Add 34 to both sides}

        7y = 5y + 34          {Subtract 5y form both sides}

  7y - 5y = 34

         2y = 34                {Divide both sides by 2

            y = 34/2

y =17

Answer:

There is no possible combination that will result in mango-banana juice that costs $5.50 per quart if its two ingredients cost $8.50 and $6.20 per quart.

Step-by-step explanation:

the equation you need to solve is:

let M = quantity of mango juice

$8.50M + (4 x $6.20) = (4 x $5.50) + $5.50M

$8.50M + $24.80 = $22 + $5.50M

$24.80 - $22 = $5.50M - $8.50M

$2.80 = -$3M

M = $2.80 / -$3 = -0.933 ⇒ the quantity of mango juice cannot be negative

Answer:

the answer should be $39

Answer:

d) 39

Step-by-step explanation:

Answer:

y= - x + 4

Step-by-step explanation:

The point-slope form of the equation of a line is:

y= m ( x - h )+ k

Where m is the slope and (h,k) is a point through which the line passes.

The slope of the line is m=-1 and it passes through (-1,5), thus the equation of the line is:

y=(-1) ( x - (-1) ) + 5

Operating:

y= - ( x + 1 ) + 5

y= - x - 1 + 5

Simplifying:

y= - x + 4