Lucy correctly answered 70% of the questions on her science homework. She counted 14 correct answers. How many questions are there on her homework?

Answers

Answer 1

Answer:

9.8

Step-by-step explanation:

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Determine whether or not the two equations below have the same solution. In two or more complete sentences, explain your rationale.2/3x + 3/4 = 8 8x=87

Answers

Answer:

The two equation have the same solutions.

Step-by-step explanation:

Consider the provided equations.

$(2)/(3)x + (3)/(4) = 8$ ......(1)

$8x=87$ .......(2)

We need to determine whether or not the two equations below have the same solution.

Solve the first equation.

$(2)/(3)x + (3)/(4) = 8$

Multiply both the sides by 12.

$2x(4) + 3(3)=96$

$8x + 9=96$

$8x=96-9$

$8x=87$

Here we can observe that after simplifying the first equation both the equation becomes the same.

Hence, the two equation have the same solutions.

No they don't. 2/3=.67, 3/4=.75. 8-.75=7.25. 7.25/.67=10.82.... 87/8=10.88 :) hope this helps

Factor the GCF: −6x3y + 9x2y2 − 12xy33xy(−2x2 + 3xy − 4y2)

−3xy(2x2 + 3xy − 4y2)

−3xy(2x2 − 3xy + 4y2)

−3(2x3y − 3x2y2 + 4xy3

Answers

Answer:

Option C is the answer.

Step-by-step explanation:

We have to factor the GCF of the given expression:

-6x³y + 9x²y² - 12xy³

To get the GCF of the given expression we will find the factors of each term first.

Factors of 6x³y = 2 × 3 × (x) × (x) (x) (y)

Factors of 9x²y² = 3 × 3 × (x) (x) (y) (y)

Factors of 12xy³ = 2 × 2 × 3 × (x) (y) (y) (y)

So the common factor is 3 × (x) (y)

Now we will take out the GCF as a factor of the given expression = 3xy (-2x² + 3xy - 4y² )

= -3xy ( 2x² - 3xy + 4y² )

Option C is the answer.

-6x^3y + 9x^2y^2 - 12xy^3
-3xy(2x^2) - 3xy(-3xy) - 3xy(4y^2)
-3xy(2x^2 - 3xy + 4y^2)

The answer is C.

Which one of the following items is an example of software

Answers

The item that is a software in the given options is Word-processing program, the correct option is A.

What is a Software?

A software is an integral part of a computer system which allows the user to work on the system, It cannot be touched like hardware devices.

Each hardware device needs a software installed on the system to work.

Software is of two types, application software and system software.

The software among the given options is Word-processing program, all the other options are examples of Hardware.

The complete question is

Which one of the following items is an example of software?

a. Word-processing program

b. Mouse

c. Keyboard

d. Printer

To know more about Software

brainly.com/question/1022352

#SPJ2

Well in THAT case it would be C. because it is a PROGRAM, and PROGRAMS are softwares on computers ;)

Match the equation with its graph -3x+5y=15

Answers

Answer:

The fourth graph.

Step-by-step explanation:

The best way to do this is to first convert the equation to slope-intercept form. Then it is easy to see the slope and y intercept.

-3x + 5y = 15

5y = 3x + 15

y = 3/5x + 3 is slope intercept form.

The slope is 3/5 and the y-intercept is at y = 3.

It is the fourth graph.

It’s neither cuz it has a positive slope of 3/5

John is a new employee at International Widget. Having studied human relations, he's eager to understand the supervisory style employed by his immediate supervisor. Which of the following is not especially important to John's insight?a. His supervisor's flexibility on work guidelines
b. Whether his supervisor enjoys particular sports or hobbies
c. The extent to which he (John) is expected to work independently
d. Whether his supervisor is more concerned about short-term or long-term work goals

Answers

The correct option is B. In order for John to understand the supervisory style employed by his immediate supervisor, he does not needs to know the type of sport that his supervisor enjoys, for that particular information is not related to how the supervisor expects John to handle office work. The other statements are John's job related and they are good means of getting insight into the supervisory style of a supervisor.

Porfavor alguien me dice cuanto es esto 3×?=20

Answers

Answer:

es imposible

Step-by-step explanation:

3x7=21

se va por uno

Answer:

6.66666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666

Step-by-step explanation:

Que no se te olvide el punto

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Solve the equation 6x +2y = 10 for y in terms of x gives what function?y = -6x +10y = -3x +5y = 2xy = 3x + 5

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