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
7nadin3 [17]
3 years ago
11

I don't get this at all can you pls help me?

Mathematics
2 answers:
Dmitriy789 [7]3 years ago
6 0

Answer: -13.85

Step-by-step explanation:

Simplify.

4.6−7.28−11.17

=−13.85

VMariaS [17]3 years ago
4 0

Answer:

\huge \boxed{\mathrm{-13.85}}

Step-by-step explanation:

4.6+(-7.28)-11.17

Removing brackets.

\Rightarrow 4.6-7.28-11.17

Combining.

\Rightarrow -2.68-11.17

\Rightarrow -13.85

You might be interested in
A worker was paid a salary of $10,500 in 1985. Each year, a salary increase of 6% of the previous year's salary was awarded. How
Mazyrski [523]
Note that 6% converted to a decimal number is 6/100=0.06. Also note that 6% of a certain quantity x is 0.06x.

Here is how much the worker earned each year:


In the year 1985 the worker earned <span>$10,500. 

</span>In the year 1986 the worker earned $10,500 + 0.06($10,500). Factorizing $10,500, we can write this sum as:

                                            $10,500(1+0.06).



In the year 1987 the worker earned

$10,500(1+0.06) + 0.06[$10,500(1+0.06)].

Now we can factorize $10,500(1+0.06) and write the earnings as:

$10,500(1+0.06) [1+0.06]=$10,500(1.06)^2.


Similarly we can check that in the year 1987 the worker earned $10,500(1.06)^3, which makes the pattern clear. 


We can count that from the year 1985 to 1987 we had 2+1 salaries, so from 1985 to 2010 there are 2010-1985+1=26 salaries. This means that the total paid salaries are:

10,500+10,500(1.06)^1+10,500(1.06)^2+10,500(1.06)^3...10,500(1.06)^{26}.

Factorizing, we have

=10,500[1+1.06+(1.06)^2+(1.06)^3+...+(1.06)^{26}]=10,500\cdot[1+1.06+(1.06)^2+(1.06)^3+...+(1.06)^{26}]

We recognize the sum as the geometric sum with first term 1 and common ratio 1.06, applying the formula

\sum_{i=1}^{n} a_i= a(\frac{1-r^n}{1-r}) (where a is the first term and r is the common ratio) we have:

\sum_{i=1}^{26} a_i= 1(\frac{1-(1.06)^{26}}{1-1.06})= \frac{1-4.55}{-0.06}= 59.17.



Finally, multiplying 10,500 by 59.17 we have 621.285 ($).


The answer we found is very close to D. The difference can be explained by the accuracy of the values used in calculation, most important, in calculating (1.06)^{26}.


Answer: D



4 0
2 years ago
Which equation has infinitely many solutions?
mestny [16]
The correct answer is the letter B
4 0
2 years ago
Read 2 more answers
Are two negative integers postive
garri49 [273]
Two negatives added or multiplied make a positive.
7 0
3 years ago
Read 2 more answers
Help me!! Which statement is correct?
Natasha2012 [34]

Answer:

D option is correct

( At Q3 the market is wasting society's .. )

3 0
3 years ago
Please help if you know geometry
4vir4ik [10]
The first one is d. the second one is c.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone help me with number 10 thanks
    9·2 answers
  • 1 gal3 qt+2qt3pt I don’t know how to do this
    13·1 answer
  • Which inequality has a closed circle when it is graphed on a number line?
    12·2 answers
  • Solve the equation 2x -26 = 10
    14·2 answers
  • 1 yard is blank times as long as blank foot
    5·1 answer
  • Chase is building a birdhouse in the shape of a regular polygon. He knows that the measure of the interior angle is twice the me
    13·1 answer
  • I rlly need this answer pls help
    14·1 answer
  • Tell whether the ratios are equivalent: 3 days to 4 hours and 9 days to 12 hours. show your work.
    12·1 answer
  • Find an expression which represents the difference when (-4x-2) is subtracted from (-8x+3) in simplest terms.
    6·2 answers
  • Find the surface area of the composite figure.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!