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
Aleksandr-060686 [28]
3 years ago
10

Evaluate (b+c) if a=2,b=-5 and c= -3

Mathematics
2 answers:
anastassius [24]3 years ago
6 0
The answer would be -8
melisa1 [442]3 years ago
3 0

It’s a good idea to get into the habit of using parentheses

when substituting numbers in for variables.

If you have parentheses in your original problem, change them to brackets as you substitute (to avoid confusion).

Now plug in the values for b and c into the problem.

So we have [(-5) + (-3)].

Simplifying inside the brackets, we get [(-8)].

So -8 is the answer.

You might be interested in
A model giving the area A, in square meters, of a path is A = x^2 - 18x +80. Which equivalent expression shows the length and th
levacccp [35]

Answer:

B

Step-by-step explanation:

4 0
2 years ago
A vendor prepares 100.00 hotdogs every day and sells at $20.00/piece. For each hot dog, he spends $12.00 in the raw material. Ad
astra-53 [7]

Answer:

$397.34 (if he sold the 20 leftover hot dogs), $297.34 if he didn't.

Step-by-step explanation:

We are going to assume that a month has 30 days.

  • First, we are going to see how much money the vendor got from selling the 80 hot dogs. He sold 80 hot dogs at 20 dollars/piece = 1600 dollars.

  • We need to subtract the amount of money he spent in each hot dog (12 dollars in raw material plus one dollar for packing): 13 dollars x 100 hot dogs he prepared = 1300 dollars

  • He also spends a total of 80 dollars per month in truck rent, electricity and other expenses. If we divide this by the amount of days per month we have: 80/30 = 2.66

  • The problem doesn't tell us that there were unhappy customers that day so that amount is zero.

  • We are going to assume that the vendor sold the remaining 20 hot dogs at 5 dollars/piece. 20 x 5 = 100.

Thus, the profit for that day is:

1600 - 1300 - 2.66 + 100 = 397.34

<u>(</u><u>Note:</u><u> If the vendor did not sell the leftover hot dogs and he actually only sold 80 hot dogs, then the profit would be: 1600 - 1300 - 2.66 = 297.34)</u>

6 0
3 years ago
If Jack bought baseball cards and his brother took 30% of them what percent of the cards does Jack now have *
TiliK225 [7]
Well it would be 70% of them because Jack had 100% and 30% minus 100% is 70%
8 0
3 years ago
Read 2 more answers
A toy car costing $50 is reduced by 10% in the sale. how much money is it reduced by?
atroni [7]

Answer:

$5

Step-by-step explanation:

10% = 10/100 = 1/10.

1/10 of 50 = 5

5 0
3 years ago
Read 2 more answers
Determine whether each mapping represents a function. Explain your reasoning.
FinnZ [79.3K]

Answer:

The first picture is a function and the second picture is not.

Step-by-step explanation:

Reason - In the first picture, there is no repeating value of x. In other words, every x value has a y value. However, in the second picture, the x value, 2 goes to 2 and -3.

4 0
3 years ago
Other questions:
  • Simplify the following expression: (9x^2+2x−5)+(6x^2−5x+4). Please explain how you found your answer
    11·1 answer
  • Factorise this expression as fully as you can 12x^3-9x^2
    15·1 answer
  • The sum of two numbers is 11. The sum of their squares is 65. Find the numbers. (How do you get the answer?)
    11·1 answer
  • SOMEONE HELP I DON’T UNDERSTAND ITS DUE AT 4:30
    13·1 answer
  • 57 61 50 54 54 54 56 54 61 54 48 49 42 51 61 57 68 65 50 51 60 52 57 51 52 47 56 62 69 58 49 56 55 55 43 64 57 64 46 55 51 55 46
    5·2 answers
  • 4x + 16 factor out gcf
    9·1 answer
  • Frank started practicing his trumpet at 4:30 pm and finished at 6:00 pm. How long did he practice?
    14·1 answer
  • A sector with an area of 54πcm² has a radius of 9 cm. What is the central angle measure of the sector in radians?
    12·2 answers
  • Each of the past 8 days, Lashonda traveled 38.8 miles. How many miles did she travel in all?
    8·1 answer
  • Alvin's age is two times Elga's age. The sum of their ages is 24. What is Elga's age?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!