What two numbers have a product of -2 and a sum of 7

Answer:

x = -11

Step-by-step explanation:

-2(x+3)+5x = -39

distribute the -2 to what's inside the paranthesis

-2x -6 +5x = -39

combine like terms

3x - 6 = -39

add 6 to each side

3x = -33

divide each side by 3

x = -11

x = lbs

y = total cost

ABC shipping: $7 + $1x = y

XYZ shipping: $10 + $0.75x = y

We set each equation equal to the other.

$7 + $1x = $10 + $0.75x. Subtract $7 from both sides and subtract $0.75x from both sides

$0.25x = $3. Divide each side by $0.25.

x = 12 lbs

When a package is 12lbs the cost is the same.

Answer:

k

Step-by-step explanation:

The integer representing a flight overbooked by 4 passengers is given as -

k = x + 4

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

Given is a flight overbooked by 4 passengers.

Assume that the total capacity of the flight is given by integer x.

Also assume that after over booked by 4 passengers, its capacity is given by integer k. So we can write the equation as -

k = x + 4

Therefore, the integer representing a flight overbooked by 4 passengers is given as -

k = x + 4

To solve more questions on equation modelling, visit the link below-

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Answer:

A 1350/x :))))))))))))

Answer:

perfect square

Step-by-step explanation:

hope this helps plz give brainliest.

Answer:

PEMDAS: Parentheses, exponents, multiplication, division, addition, subtraction

ANSWER:

-parentheses and other grouping symbols from the inside out

-exponents

-multiplication and division from left to right

-addition and subtraction from left to right

Answer:

15 + 2y

Step-by-step explanation:

explanation answer

= 15+2 y

Answer:

  yes

Step-by-step explanation:

In general, a linear equation with a variable anywhere can be written as a 2-step equation. (It may take several steps to get there.)

Example 1:

  2(3x +3) = 18 . . . original equation with variable in parentheses

  6x +6 = 18 . . . . . 2-step equivalent

Example 2:

  4(x -9) +6 = 3(2x +17) . . . original equation

  4x -36 +6 = 6x +51

  -30 = 2x +51 . . . . . . 2-step equivalent

Answer:

Yes

Step-by-step explanation:

Answer:

The rate is 0.9 gallon per minute

Step-by-step explanation:

Here, we have 4.5 gallons drained in 5 minutes but we are interested in calculating the rate per minute

Let the amount drained per minute be x

4.5 gallons = 5 minutes

x gallon = 1 minute

Let’s cross multiply;

x * 5 = 4.5 * 1

5x = 4.5

x = 4.5/5

x = 0.9 gallons

Answer:

6 meters of Flooring.

Step-by-step explanation:

I could be wrong but I’m pretty sure this question is Length x Width to find the Area of the “Room” or “Triangle.”. <3

Answer:

3n + 12 = 45

Step-by-step explanation:

*Process of elimination*

___________________

3n + 12 = 45

(given)

_________

3n + 12 = 45

- 12 - 12

(subtraction property of equality)

__________________________

3n = 33

÷ 3 ÷ 3

(division property of equality)

_______________________

n = 11

_____

7n - 8 = 62

(given)

________

7n - 8 = 62

+ 8 + 8

(addition property of equality)

__________________________

7n = 70

÷ 7 ÷ 7

(division property of equality)

_______________________

n = 10 ≠ 11

________

8n + 6 = 102

(given)

________

8n + 6 = 102

- 6 - 6

(subtraction property of equality)

__________________________

8n = 96

÷8 ÷8

(division property of equality)

_______________________

n = 12 ≠ 11

________

5n - 20 = 25

(given)

________

5n - 20 = 25

+ 20 + 20

(addition property of equality)

__________________________

5n = 45

÷5 ÷5

(division property of equality)

_______________________

n = 9 ≠ 11

Answer: m=1/2; b=-5

Step-by-step explanation:

We can use the given points to find slope, then use the y=mx+b equation to find the y-intercept. The formula for slope is [tex]m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex].

[tex]m=\frac{-8-(-2)}{-6-6}=\frac{-6}{-12} =\frac{1}{2}[/tex]

Now that we know m=1/2, we can use that in y=mx+b to find the y-intercept. We can use any given point to plug into x and y.

y=1/2x+b                [plug in x and y]

-2=1/2(6)+b            [multiply]

-2=3+b                   [subtract both sides by 3]

b=-5

Now, we know that b=-5.

Answer:

I hope it will help you..

On putting the values in the algebraic expression, the value is [tex]\sqrt[3]{2}-3\\[/tex].

An algebraic expression in mathematics is an expression which is made up of variables and constants, along with algebraic operations.

[tex]\sqrt{a} ^{3}-7+|b|\\ \\\sqrt[3]{2}-7+|-4|\\ \\\sqrt[3]{2}-3\\ \\[/tex]

Learn more about algebraic expression here

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Answer:

did you ever get the answer by any chance im looking for the same thing sorry i didnt comment barainly didint let me so i put it on the answers

Step-by-step explanation:

Answer: Tamara invited 42 people

Step-by-step explanation:

61-19=42

Answer:

X=36

Step-by-step explanation:

Let x be the unknown number

Three quarters of a number =3x/4

Three was added =3x/4 +3

Final

3x/4 + 3= 30

Multiply through with 4

3x+ 12=120

3x=120-12

3x=108

X=108/3

X=36

Answer:

40 cups

Step-by-step explanation:

Answer:                                                                                                                          

44 cups

......................................

5 weeks -> $20

Divide 5:

1 week -> $4

Replace week with "w" and $ with "s"

[tex]w=4s[/tex]

Answer:

8km

Step-by-step explanation:

10 miles = 16 km

1 mile = 16/10km = 1.6km

5 miles = 1.6*5 km

= 8 km

Answer:

A and D

Step-by-step explanation:

A) 10+2^3*4-1                     D) 10+(2^3*4)-1

10+8*4-1                                  10+(8*4)-1

10+32-1                                   10+32-1

42-1                                         42-1

41                                             41

Answer:

A counterclockwise rotation of 270° about the origin

Step-by-step explanation:

Answer:6 feet 3 inches

Explaining-by dividing 84 by 16.8 you should find out the actual door is 5 times bigger than the photo,next all you have to d is multiply the theifs photo height by 5

Answer:

__ - 8=81

unsure if we're adding his friend but for this i assume no,

81+ 8 = 89

so its either 89 or

89+13=102

Answer:

p [tex]\leq \\[/tex] 8

Step-by-step explanation:

Answer:

p[tex]\leq[/tex]8

Step-by-step explanation:

Step 1- Add 7 to both sides of the inequality.

New inequality:

[tex]\frac{p}{8}[/tex] [tex]\leq[/tex]1

Step 2- Now multiply by 8 on both sides of the inequality to get your answer.

Answer:

p[tex]\leq[/tex]8

Answer:

It's a decimal number......

Answer:

122

Step-by-step explanation:

mutpily 4 the 40 from and 3 from the 32 u get 12and then put 2 at the end

Answer:

9x – 5 y = -12

any point along this line

Step-by-step explanation:

9x – 5 y = -12

-9x + 5y = 12

Add the two equations

9x – 5 y = -12

-9x + 5y = 12

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

0x   + 0y   = 0

There are infinite solutions since the y are the same line

Answer:

6 is the answer

Step-by-step explanation: