5.
A car needs 40 litres of petrol to travel for 216 km. If the car travels for 320 km, how
many litres of petrol are needed?
​

Answer:

width = 1.77845 ft

length = 7.1138 ft

height = 5.691 ft

total cost = $759.09

Step-by-step explanation:

volume = length x width x height

length = 4 width

base of the rectangle = 4 x 1 w = 4w²

72 (volume) = 4w²h

18 = w²h

f(c) = (2 x 4w² x $10) + (2 x wh x $5) + (2 x 4wh x $5)

f(c) = 80w² + 10wh + 40wh

f(c) = 80w² + 50wh

since we need only 1 variable (width), we have to substitute h:

h = 18/w²

f(c) = 80w² + 50w(18/w²) = 80w² + 900/w

f'(c) = 160w + 900/w²

0 = (160w³ + 900)/w²

0 = 160w³ + 900

0 = 20(8w³ + 45)

0 = 8w³ + 45

8w³ = -45

w³ = -45/8

w = ∛-45/8 = -1.77845 and 1.77845

since w cannot be negative, then it must be 1.77845

Answer:

5(3x+4)=23

5*3=15 5*4=20

15x+20=23

      -20=-20

15x=3

divide by 15 from both sides

x=0.2

Step-by-step explanation:

Answer:

5(3x+4)=23

5*3=15 5*4=20

15x+20=23

     -20=-20

15x=3

divide by 15 from both sides

x=0.2

Explanation: In a fraction, the number of equal parts being described is the numerator (from Latin: numerātor, "counter" or "numberer"), and the type or variety of the parts is the denominator (from Latin: dēnōminātor, "thing that names or designates"). As an example, the fraction 8/5

amounts to eight parts, each of which is of the type named "fifth". In terms of division, the numerator corresponds to the dividend, and the denominator corresponds to the divisor.

Informally, the numerator and denominator may be distinguished by placement alone, but in formal contexts they are usually separated by a fraction bar. The fraction bar may be horizontal (as in 1/3), oblique (as in 2/5), or diagonal (as in 4⁄9). These marks are respectively known as the horizontal bar; the virgule, slash (US), or stroke (UK); and the fraction bar, solidus, or fraction slash. In typography, fractions stacked vertically are also known as "en" or "nut fractions", and diagonal ones as "em" or "mutton fractions", based on whether a fraction with a single-digit numerator and denominator occupies the proportion of a narrow en square, or a wider em square. In traditional typefounding, a piece of type bearing a complete fraction (e.g. 1/2) was known as a "case fraction", while those representing only part of fraction were called "piece fractions".

The function is odd, since

f(-x) = (-x)³ + (-x)

… = (-1)³ x³ - x

… = -x³ - x

… = -(x³ + x)

… = - f(x)

so the answer is B.

Answer:

2^8

Step-by-step explanation:

Answer:

7/36

Step-by-step explanation:

find the LCD   write all the numerators above the least common denominator

LCD is 36

4 +3 /36 =7/36

Answer:

Solving the given formula for v2 gives us:

[tex]a(t_2-t_1)+v_1 = v_2[/tex]

Step-by-step explanation:

Solving an equation for a particular variable means that the variable has to be isolated on one side of the equation.

Given equation is:

[tex]a = \frac{v_2-v_1}{t_2-t_1}[/tex]

Multiplying both sides by t2-t1

[tex](t_2-t_1) . a = \frac{v_2-v_1}{t_2-t_1} . (t_2-t_1)\\a(t_2-t_1) = v_2-v_1[/tex]

Adding v1 to both sides of the equation

[tex]a(t_2-t_1)+v_1 = v_2-v_1+v_1\\a(t_2-t_1)+v_1 = v_2[/tex]

Hence,

Solving the given formula for v2 gives us:

[tex]a(t_2-t_1)+v_1 = v_2[/tex]

Answer:

46.2

Step-by-step explanation:

if you plug the value given for g into g in the equation, it should look like

2.2(21) which you multiply the two together. and you get 46.2.

hope this helps you...sorry just seen  your question now.

X+X+X+X+X+X+X/7=82

X+X+X+X+X+X+X+X/8=85

X+X+X+X+X+X+X=574

X+X+X+X+X+X+X+X=680

X=106

You need to score 106

Hope this helps :D

Answer:

Step-by-step explanation:

If we add x gal of 4.5% milk, then we have below equation:

Answer:

11

Step-by-step explanation:

1+1=11

Answer:

2 because its simple

Answer:

y= [tex]\frac{1}{12}[/tex] · x²

Step-by-step explanation:

[tex]\frac{1}{4 times P}[/tex] ·x²

p=3

[tex]\frac{1}{4times3}[/tex] ·x²

Answer:

33.34%.

Step-by-step explanation:

Given that,

The actual price of the shirt = $36

Price on sale = $24

We need to find the percent of the decrease. The formula for the percentage is given by :

[tex]\%=\dfrac{|\text{actual value-estimated value}|}{\text{actual value}}\times 100[/tex]

Putting all the values,

[tex]\%=\dfrac{24-36}{36}\times 100\\\\=33.34\%[/tex]

So, the percentage decrease in the price of the shirt is 33.34%.

-8 + 7 = -1

so the answer would be:

-xy or -1xy

Answer:

-xy

Step-by-step explanation:

Add -8xy and 7xy= -xy

Hope this helped! :)

May i have brainliest!

Answer: A

Step-by-step explanation:

Francis = v+9

17 = v +9 so A

Answer:

it would be a

Answer:

-0.25Step-by-step explanation:11 - (-5) is 16 and 2 - 6 is -4 and -4 divided by 16 is -0.25

Answer:

Step-by-step explanation:

This is because when calculating the slope of given points, we must use this simple formula:

(simplified version)

The actual formula is

1. Find the difference of the x axis'

ANSWER: The difference of the x axis should be 11-(-5)= 16

2. Find the difference of the y axis'

ANSWER: The difference of the y axis should be 2-(6)= -4

3.  Substitute these new values into the formula Δy/Δx

ANSWER: You should get -4/16 which is -0.25

4. Your answer will be -0.25

Answer:

17

Step-by-step explanation:

204 / 12 = 17

Answer:

the correct answer should be c, 304

Answer:

c or 304

Step-by-step explanation:

i took the quiz on edge

Answer:

(4,2)

As you plug the coordinates into an equation and it equals

(3x4)-2= 12-2 =10

Have a beautiful day! v(⌒o⌒)v♪

Answer:

x = 30°

Step-by-step explanation:

Since m and n are perpendicular, then

y + 70° = 90° ( subtract 70° from both sides )

y = 20°

thus 40 + y = 40° + 20° = 60°

Then

x + 60° = 90° ( subtract 60° from both sides )

x = 30°

Answer:

Step-by-step explanation:

B, D, E

because you have a quotient when you divide and has the same rules as multiplication

Answer:

length = 11 yard

width =  5 yard

Step-by-step explanation:

Area of a rectangle = L W

where A = 55 yard

           L = 3W - 4

find: Length

        width

solution:

A = L W

55 = (3W - 4) W

55 = 3W² - 4W

3W² - 4W - 55 = 0

use quadratic equation to solve for W:

W = - (-4) ± √(-4)² - 4(3)-55

                    2(3)

W = 5,  W = -11/3

substitute W=5 to equation L = 3W - 4 to solve for L

L = 3W - 4

L = 3(5) - 4

L = 15 - 4

L = 11

therefore, the dimensions of a rectangle:

length = 11 yard

width =  5 yard

Answer:

I would say that the percentage is 2  since

90=100\%(1)

x=95\%(2)

x=85.5

so the answer for this equation is 2% of percentage tax

and will save 85.5

Answer:

Store 1 has the best deal at $56.70. The order goes as shown below!

Step-by-step explanation:

Store 2 - $61.20

Store 3 - $60.75

Store 1 - $56.70

Hope this helped :)

Answer:

36 ft squared

Step-by-step explanation:

12*5=60 Original Size

12+25% of 12= 16

5+ 20% of 5= 6

6*16=96

The difference between the two:

96-60=36 ft squared difference

Answer:

295.1079

Step-by-step explanation:

Answer:

whats the question

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

whwieiwisijwjdjejeusjsjs

Answer:

y=35 x=145

Step-by-step explanation:

y is equivalent to 35

180-35=145

Answer:

x = 145

y = 35

Step-by-step explanation:

x and the 35 degree angle are supplementary angles, so x + 35 = 180.

solve for x, x = 145. the 35-degree angle and angle Y are corresponding angles, so the value of y will be 35.