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Andrew [12]
3 years ago
15

He science club has 4 members. The club bought b bumper stickers to split among its members. Write an expression that shows how

many bumper stickers each member will get
Mathematics
1 answer:
Nataliya [291]3 years ago
6 0

Answer:

b / 4

Step-by-step explanation:

If you are splitting <em>b</em> bumper stickers between <u>4</u> members, you must divide the number of bumper stickers by the number of members, which is 4! Dividing is just like if you were to divvy something up between people, but it is a mathematical term! This will give you  b / 4.

You might be interested in
Use interval notation to express the following:
Lapatulllka [165]

Answer:

D

Step-by-step explanation:

The bracket means that it is inclusive so since the questions says that it has to be greater than or equal to, we can cross out B and C.

A means that it is all number less than or equal to -22 so it has to be D

7 0
2 years ago
In which situation below would you want to use the Explicit Formula instead of the Recursive Formula?
Luden [163]

9514 1404 393

Answer:

  all of them, possibly excepting the 4th term

Step-by-step explanation:

The recursive formula is good if you have terms near the one of interest. It might be used for the 4th term, but that would require that you compute the three previous terms:

  7, 5, 3, 1 . . . . requires 3 subtractions

It can be about as easy to calculate ...

  a4 = 7 -2(3) = 1 . . . . requires two* subtractions and a multiplication

__

However, for the 7th, 11th, and 106th terms, it is impractical to list all previous terms. The explicit formula is a better choice.

A.  a4 = 7 -2(3) = 1

B.  a7 = -1 +10(6) = 59

C.  a106 = 2 +5(105) = 527

D.  a11 = -3 +4(10) = 37

_____

* The explicit formula is ...

  an = a1 +d(n -1)

The operations identified in this formula (in the order required by the Order of Operations) are subtraction, multiplication, and addition. For a negative common difference, that amounts to two subtractions and a multiplication.

For manual evaluation, the work involved in using the recursive or explicit formulas for the 4th term is about the same, if the arithmetic is easily done mentally (as here).

5 0
3 years ago
The circumference of a circle is 5 π m. Find its diameter, in meters.
stiv31 [10]

Answer:

d=2r

Step-by-step explanation:

8 0
3 years ago
|7| <br><br> What does this mean?
Elza [17]

Absolute value of 7. Any real numbers in the absolute sign would equal to the positive value.

<u>D</u><u>e</u><u>f</u><u>i</u><u>n</u><u>i</u><u>t</u><u>i</u><u>o</u><u>n</u>

\large \boxed{ |x|  =  \begin{cases} x  \:  \:  \:  \: (x \geqslant 0) \\  - x \:  \:  \:  \: (x < 0) \end{cases}}

If we substitute x = 7 in. Answer by using the definition of absolute value. Note that we only substitute x = 7 in x and not -x since 7 is greater than 0 and not less than 0.

\large{ |7|  = 7 \:  \:  \:  \:  (x \geqslant 0)}

You may also be wondering what will happen if we substitute x = any negative numbers.

\large{ | - 7|  =  -  ( - 7) \:  \:  \:  \: (x <  0)} \\  \large \boxed{ | - 7|  =  7}

Because -7 is less than 0. We substitute in -x and not x. This is the definition of absolute value. But to understand it easily, any numbers in absolute value have to equal to their positive value.

Conclusion

  • |7| means the absolute value of 7.
  • |7| is 7.
  • |x| is x when x ≥ 0 but -x when x < 0

Let me know if you have any doubts regarding the absolute value through comment!

7 0
3 years ago
Martinique an antwan had their bill at a restaurant reduced by $6 because of a special discount. They left a tip of $9.80,which
mafiozo [28]

Answer:

  $55

Step-by-step explanation:

Let b represent the original bill. The problem statement tells us ...

  20% × (b -6) = 9.80

Dividing by 20% gives ...

  b -6 = 49.00

  b = 55.00 . . . . . . . add 6

Their bill before the discount was $55.00.

___

<em>Comment on the tip</em>

It is generally considered better form to tip on the basis of the original bill before coupons and discounts.

4 0
3 years ago
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