I will mark brainliest. I need to write a proof for given: <1=<5 prove n||p I completely forgot how to do this and have attached a picture

For the equations 7 x - y = 7 and x + 2 y = 6, we get the solution as x = 4 / 3 and y = 7 / 3.

We are given the equations:

7 x - y = 7   … (1)

x + 2 y = 6

x = 6 - 2 y   … (2)

Substitute equation (2) in equation (1), we get that:

7 ( 6 - 2 y ) - y = 7

42 - 14 y - y = 7

15 y = 35

y = 35 / 15

y = 7 / 3

x = 6 - 2 ( 7 / 3)

x = 18 - 14 / 3

x = 4 / 3

Therefore, for the equations 7 x - y = 7 and x + 2 y = 6, we get the solution as x = 4 / 3 and y = 7 / 3.

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Answer:

the number is ..let X

The required equation for sharing the bills equally is 5x = 62.65 and each will pay $12.53

How many friends went to the restaurant altogether?

The fact that the person went with  4 friends and paid for every means that he made payments for the 5 of them and he is expected to get refund from 4 persons, in other words, in order to share bills equally, the 5 friends would have to contribute equally, which means we would divided total bills by the number of friends, which is 5 not 4 because the first person would also his part of the bills

Let x be the amount paid person, the total amount paid would be x paid person multiplied by the number of friends, 5

total amount paid=5*x

total amount paid =5x

the amount paid in dollars is $62.65

5x=62.65

x=62.65/5

x=$12.53

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Expression: 4*(-12)= -48

-7-6= -13

Equivalent: -12*4= -48

8-(-6)= 14

-3-16= -19

Answer:

1. STEPS FOR SOLVING LINEAR EQUATION

[tex] \frac{4m}{3} = 8[/tex]

Multiply both sides by 3.

4m=8×3

Multiply 8 and 3 to get 24.

4m=24

Divide both sides by 4.

[tex]m = \frac{24}{4} [/tex]

Divide 24 by 4 to get 6.

m=6

2. 2p+3=7; p=2 pounds

Based on the coordinates of XY which are X(7, 2) and Y(2, 0), the domain and range are:

The domain of a line refers to all the points on that line that the value of the x-axis can take.

In line XY, the only two x-axis values are 7 and 2. This means that the domain is therefore (2, 7).

The range of a line on the other hand, are all the points that the value on the y-axis can take.

The range in this case is therefore (0, 2).

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Answer:

C. 10

Step-by-step explanation:

It is very easy to find the square root of a number that is a perfect square. For example, 100 is a perfect square, 100 = 10 × 10. So, 10 is the square root of 100 and this can be expressed as √100 = 10. The square root of any number, in general, can be found by using any of the four methods given below:

The equivalent expression of 4p^2 + 5.5m + 2.5p^2 - m + 3m is 6.5p^2 + 7.5m

The expression is given as

4p^2+5.5m+2.5p^2-m+3m

Rewrite properly as

4p^2 + 5.5m + 2.5p^2 - m + 3m

Collect the like terms in the above equation

4p^2 + 5.5m + 2.5p^2 - m + 3m = 4p^2 + 2.5p^2 + 5.5m - m + 3m

Evaluate the like terms in the above equation

4p^2 + 5.5m + 2.5p^2 - m + 3m = 6.5p^2 + 7.5m

Hence, the equivalent expression of 4p^2 + 5.5m + 2.5p^2 - m + 3m is 6.5p^2 + 7.5m

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Answer:

an identity............

Answer:

An identity

Step-by-step explanation:

An identity is an equation, which is true for all values of the variables in the equation.

Answer:

ikj

Step-by-step explanation:

In a triangle:

When labeling angles and sides of triangles, it is convention to label the side opposite an angle with the same letter but in lower case.  

Therefore in ∆JLK:

As 16 < 73 < 91

⇒ m∠I < m∠K < m∠J

As the angles of ∆JLK in order from smallest to largest are IKJ, then the sides of ∆JLK in order from smallest to largest are ikj.

Answer: 8.3 hours

Step-by-step explanation: 15.76-15.01 is 0.75

Now just divide 0.75 from 0.09 and you get 8.3

Answer:

Step-by-step explanation:

Stock A= $15.01 increases by $0.13 an hour. $15.14

Stock B =$15.76 decreases by $0.09 an hour $15.65

15.65-15.14= 0.51

The cube root of 35 would be plotted on a number line A. Between 3 and 4, but closer to 3.

It should be noted that cube root of a number simply means a number that you can multiply three times that will give the original number.

In this case, the cube root of 35 will be 3.2.

This means that it's closer to 3. It's also between 3 andmd 4.

Therefore, the cube root of 35 would be plotted on a number line between 3 and 4, but closer to 3.

In conclusion, the correct option is A.

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Answer:

See answers below

Step-by-step explanation:

This type o problem is known as a Diamond problem

From the diamonds on the top row, it is clear that the top cell of the diamond is the product of the two side numbers and the bottom is the sum of these numbers.

I will use top for the top cell and bottom for the bottom cell, left for and right respectively for left and right cells

a. Top = 2 x 5 = 10; Bottom = 2 + 5 = 7

b. Top = -2 x -1 = 2; Bottom = -2 - 1 =  -3

c. Top = Left x Right = 8
  Bottom = Left + Right = 6.  The only two numbers that satisfy this equation are Left = 4 and Right = 2 since 4 x 2 = 8 and
4 +2 = 6
Answer to c: Left = 4, Right = 2

d We have Let unknown left be L and unknown bottom be B
We have L x  (1/2) = 4 for the product
[tex]\rm{\frac{L}{2} = 4}\\\\L = 2 x 4 = 8[/tex]

We have Bottom = Left + Right = 8 + 1/2  = [tex]8\frac{1}{2}[/tex] = 17/2
Answer to d. : Left = 8, Bottom = 17/2

e. Similar to c.

Top = Left x Right = 12;
Bottom = Left + Right = -7
12 can be 2 x 6 or 3 x 4 (same as 4 x 3) or 12 x 1. 4 and 3 are the obvious choices and since they add up to - 7 they both have to be negative
So Left = -3, Right = -4

Note: (-3) x (-4) results in +12

The equation which has no solution among the answer choices as given in the task content is; b + 2 = b-2.

It follows from the task content that the equation which has no solution is to identified.

On this note, the equation in which case, the variable diminishes and the equality does not hold represents that which has no solution.

Hence, the required equation is; b + 2 = b-2.

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Answer:

[tex] \frac{ - 5}{4} [/tex]

Step-by-step explanation:

[tex] \frac{5}{6} \div \frac{ - 2}{3} [/tex]

When dividing two fractions, we turn the second fraction upside-down and multiply two expressions instead.

[tex] \frac{5}{6} \times \frac{ - 3}{2} = \frac{ - 15}{12} [/tex]

Now simplify the fraction by dividing it with biggest common divisor which is 3 in this case.

[tex] \frac{ - 5}{4} [/tex]

is the final result.

Answer:

10 cards

Step-by-step explanation:

In order to find how many packs Joel needs to buy we need Make an equation

Equation = 5c + 15 = 65

where,

5c+15=65

Step 1: Subtract 15 from both sides.

5c+15−15=65−15

5c=50

Step 2: Divide both sides by 5.

5c/5 = 50/5

c=10

Therefore, Joel need to buy total of 10 cards in order to have at least 65 total cards

The interval that represents the inequality 1 < x ≤ 6 is given by:

B. (1,6].

The standard interval notation of an interval of lower bound a and upper bound b is given by:

[a,b].

The inequality notation is:

a ≤ x ≤ b

The set builder notation is:

{x | a ≤ x ≤ b}.

In this problem, we are given the inequality 1 ≤ x ≤ 6, hence a = 1 and b = 6, and open at x = 1 and closed at x = 6, hence the interval is:

B. (1,6].

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Answer:

819,200

Step-by-step explanation:

First start by raising all the numbers to the power indicated:

5^4 = 625

8^5 = 32768

2^9 = 512

5^2 = 25

Then divide the numerators by the denominators:

625 / 8 = 78.125

32768 / 64 = 512

512 / 25 = 20.48

Finally, multiply all the numbers together

78.125 * 512 * 20.48 = 819200

The time taken by the cyclist to ride from the garden city to dodge city, Kansas is 3.5 miles/hour.

Given that, a cyclist rides at a constant speed of 15 miles per hour.

We need to find at this speed how long would it take the cyclist to ride from the garden city to dodge city, Kansas.

Calculate speed, distance or time using the formula d = st, distance equals speed times time.

Now, the distance between garden city to dodge city, Kansas 52.3 miles via US-50 E.

So, time taken=52.3/15

=3.48≈3.5 miles/hour

Therefore, the time taken by the cyclist to ride from garden city to dodge city, Kansas is 3.5 miles/hour.

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Answer: 2

Step-by-step explanation: I just did this lesson

A scale factor is a ratio between the scale of the original object in an actual sense and the prototype figure of the same object.

If the height of the actual airplane is 20m and the in the scale drawing the height is 10m.

The scale factor of the airplane is 200.

A scale factor is a ratio between the scale of the original object in an actual sense and the prototype figure of the same object.

We have

The height of the plane in scale drawing:

= 10 cm

The height of the plane in an actual airplane.

= 20 m

The scale factor of the height of the airplane:

= 20m / 10 cm

[ 1 m = 100 cm ]

= (20 x 100) cm / 10 cm

= 200

Thus,

The scale factor of the airplane is 200.

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So nearest hundred of calories of pizza is 3384.

As it is given that its an pizza of 16 inches .

A Calorie is unit of heat used to indicate the amount of energy foods produce in the human body that is equal to 1000 calories.

Rounding means making a number simpler but keeping its value close to what it was. The result is less accurate, but easier to use. Example: 73 rounded to the nearest ten is 70, because 73 is closer to 70 than to 80.

So as we all know pizza of 16 inches contains 3384.00 calories

And its been asked to the nearest hundred so divide it by 100And we get 3384 calorie. So a 16 inch pizza contains 3384 calories.

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Answer:

Circumference = 75.4

Step-by-step explanation:

Since the circles are identical, that means that the radii must be equal.

4x=3x+3

x=3

That means that radius = 12

The formula for the circumference = 2pi × radius

2pi × 12 = 24pi ≈ 75.4

Answer:

75.4 (nearest tenth)

Step-by-step explanation:

The diameter of a circle is the distance from one side of the circle to the other through the center. The diameter is the widest part of the circle.

The radius of a circle is the distance from the center to the circumference.  The radius is half the diameter of a circle.

We have been given the radius of the circle on the left:  r = 4x.

Therefore, as the diameter is twice the radius, the diameter of the circle on the left is:  d = 2(4x) = 8x

We have been given the diameter of the circle on the right:  d = 6x + 6

Equate the two diameters and solve for x:

⇒ 8x = 6x + 6

⇒ 8x - 6x = 6x + 6 - 6x

⇒ 2x = 6

⇒ 2x ÷ 2 = 6 ÷ 2

⇒ x = 3

Substitute the found value of x into one of the diameter expressions to find the diameter of both circles:

⇒ d = 8x

⇒ d = 8(3)

⇒ d = 24

Circumference of a circle

C = πd

(where d is the diameter)

Substitute the found diameter into the circumference formula:

⇒ C = πd

⇒ C = 24π

⇒ C = 75.39822...

⇒ C = 75.4 (nearest tenth)

Therefore, the circumference of each circle is 75.4 units (nearest tenth).

10/586=582824448

55359=5244+88556-89595

=8388256

Answer: 208 in^2

Step-by-step explanation:

4 2*8 rectangles

1 8*8 square

4 5*8/2 triangles

4(2*8)+8*8+4(5*8/2)=

4(16)+64+4(5*4)=

64+64+4(20)=

128+80=208 in^2

Answer: x=7     x=10

Step-by-step explanation:

[tex]x^2+70=17x\\x^2+70-17x=17x-17x\\x^2-17x+70=0\\x^2-7x-10x+70=0\\x(x-7)-10(x-7)=\\(x-7)(x-10)=0\\x-7=0\\x=7\\x-10=0\\x=10[/tex]

Answer:

x = 7, x = 10

Step-by-step explanation:

x² + 70 = 17x ( subtract 17x from both sides )

x² - 17x + 70 = 0 ← in standard form

consider the factors of the constant term (+ 70) which sum to give the coefficient of the x- term (- 17)

the factors are - 10 and - 7 , since

- 10 × - 7 = + 70 and - 10 - 7 = - 17 , then

(x - 10)(x - 7) = 0 ← in factored form

equate each factor to zero and solve for x

x - 7 = 0 ⇒ x = 7

x - 10 = 0 ⇒ x = 10

Answer: x = -2

Step-by-step explanation:

4x=0.5(2x−12)

Use the distributive property to multiply 0.5 by 2x−12.

4x=x−6

Subtract x from both sides.

4x−x=−6

Combine 4x and −x to get 3x.

3x=−6

Divide both sides by 3.

x= 3−6

Divide −6 by 3 to get -2.

Answer:

Inequality 1 is incorrect; it should be g ≤ 80.

Step-by-step explanation:

Kyle's grandmother is not more than 80. This means that she is either equal to 80 or less than 80.

This gives us the inequality: g ≤ 80

Answer:

18

Step-by-step explanation:

3x+y=0 and x+2y=7

i)

a= intercept on x axis

b= intercept on y axis

from the question

a=2b

x/2b+ y/b=1

x+2y=2b

since it passes through the point (3,2)

then 3+4=2b

7/2=b

x+2y=7     putting the value of b

ii) given b =3a

then x/a+ y/ 3a =1

3x+y=3a

it passes through ( -1,3) then

-3+3=3a

a=0

3x+y=0

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Answer:

-28

Step-by-step explanation: