1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
eimsori [14]
3 years ago
15

What’s the simplified expression for the expression below 7(x - 4) - 3(x + 5)

Mathematics
1 answer:
Len [333]3 years ago
4 0

Answer:

4 x + -43

Step-by-step explanation:

Simplify the following:

7 (x - 4) - 3 (x + 5)

Hint: | Distribute 7 over x - 4.

7 (x - 4) = 7 x - 28:

7 x - 28 - 3 (x + 5)

Hint: | Distribute -3 over x + 5.

-3 (x + 5) = -3 x - 15:

7 x + -3 x - 15 - 28

Hint: | Group like terms in 7 x - 3 x - 28 - 15.

Grouping like terms, 7 x - 3 x - 28 - 15 = (7 x - 3 x) + (-28 - 15):

(7 x - 3 x) + (-28 - 15)

Hint: | Combine like terms in 7 x - 3 x.

7 x - 3 x = 4 x:

4 x + (-28 - 15)

Hint: | Evaluate -28 - 15.

-28 - 15 = -43:

Answer: 4 x + -43

You might be interested in
estimate each product. tell whether the estimate is greater than or less than the actual product. $224×12= 372×36= 488×85= 515×4
Jobisdone [24]
<span>224*12=2600(less than actual Product) 372*36=13400(greater than actual Product) 488*85=41500(greater than actual Product) 515*41=21100(less than actual Product)</span>
6 0
3 years ago
The radius of the circle is increasing at a rate of 2 meters per minute and the sides of the square are increasing at a rate of
Lunna [17]

Answer:

Change in area=24\pi-48

Step-by-step explanation:

Let s will be the side of square and r will be the radius of circle.

Then two given conditions are

1)dr/dt=2 m/s

2)ds/dt=1 m/s

Area enclosed=(Area of square)-(Area of circle)

Area of square=s^{2}

Area of circle=\pi r^{2}

Area enclosed=(\pi  r^{2})-s^{2}

dA/dt=2\pir(dr/dt)-2s(ds/dt)

At s=24,and r=6

dA/dt=2(\pi)(6)(2)-2(24)(1)

Change in area=24\pi-48

6 0
3 years ago
Sam wanted to buy candy for all of his friends to share at lunch. One pound of chocolates cost $6.95, but Sim only needs 0.6 of
OLga [1]

Answer:

The answer to your question is cost of 0.6 pound of candy $4.17

Step-by-step explanation:

Data

1 pound of candy = $6.95

only 0.6 pounds

final cost = ?

Process

1.- Use proportions to find the cost of 0.6 pounds of candy

               1 pound of candy -------------- $6.95

               0.6 pound of candy ----------   x

2.- Use cross multiplication

                 x = (0.6 x 6.95) / 1

3.- Simplification and result

                 x = $ 4.17          

5 0
3 years ago
Solve the following system of linear equation by graphing. <br>4x + 2y = -2 <br>2x – 3y = 9 ​
Viefleur [7K]
If you can graph in slope intercept, your new equations would be: y= -2x-1 and y= 2/3x-3.
Just graph those now since it should be easier.
3 0
3 years ago
A binomial experiment consists of 14 trials. The probability of success on trial 7 is 0.84. What is the probability of failure o
r-ruslan [8.4K]

Answer:

The probability of failure of trial 11 is  q = 0.16

Step-by-step explanation:

Generally one the attributes of a binomial experiment is that the probability of success and  failure  is constant every trial so given from the question that the probability of success is 0.84 for trial 7 , then the probability of failure of trial  7 will be evaluated as

            q =  1 - 0.84

=>         q = 0.16

And from the attribute stated above the probability of failure of trial 11 is  q = 0.16

6 0
3 years ago
Other questions:
  • To which set of numbers does -1/4 belong to?
    5·1 answer
  • Evaluate the function for x = -4n.
    6·2 answers
  • What is the answer in multiple choice? Explain how you got it.
    14·2 answers
  • Find the gcf of 15 and 85
    7·1 answer
  • For which graph is the parent function y=x^2
    9·2 answers
  • 2x+5d-9×2c+844+233+2×+78d​
    9·1 answer
  • A teacher asked her students how many pets they own.Here are the results: 0,0,0,1,1,1,1,2,2,2,4,4,8 On a piece of paper, draw a
    5·2 answers
  • Which accurately shows how to use inverse operations to find the value of a in a + 5 = 14?
    8·2 answers
  • What are the coefficient(s) in the expression: 3x+2r-7
    13·2 answers
  • What’s does 120$ plus 40% mean
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!