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timofeeve [1]
3 years ago
11

Why can a variable be used to represent a number

Mathematics
1 answer:
irina [24]3 years ago
6 0

Variables can be used to represent unknown numbers in a equation or expression that you will later find out what they are
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1. Manufacturing Process Incorporation plan to produce a new ergonomic chair. Before the company starts producing this chair the
Oduvanchick [21]

Answer:

1. cost per chair: $86.40

2. selling price per chair: $146.88

Step-by-step explanation:

1. The total cost per chair will be the sum of the cost of materials and the overhead cost (equipment, energy, labor, marketing). The cost of materials is ...

$500/(16 chairs) = $31.25/chair

So, the total cost is ...

cost of each chair = material cost + overhead cost

= $31.25 +55.15

cost of each chair = $86.40

__

2. We assume the markup is 70% of the cost, so will be ...

0.70 · $86.40 = $60.48

Then the selling price of the chair will be ...

selling price = cost + markup

selling price = $86.40 +60.48

selling price = $146.88

3 0
3 years ago
HELP!!! I will give brainliest, 25 points!!
kirza4 [7]

Cards = x

Bouquets = y

They spend 2 on each card so 2x and 3.50 for each bouquet so 3.50y add those together to get the total they can spend 2x + 3.50y = 360

Then add the sales together: 6x + 8y = 900

Answer: D. 2x + 3.50y = 360; 6x + 8y = 900

6 0
3 years ago
PLEASE HELP!!!Find the area of the kite.
Veseljchak [2.6K]

Answer:

9

Step-by-step explanation:

9 is the correct answer.

4 0
3 years ago
3. A postal carrier can
Delicious77 [7]

Answer:

6 hours. ( I DID IT USING PROPORTIONS!)

Step-by-step explanation:

houses/hours

130/2.5= 312/x

(cross multiply)

130x = 780

130x/130 = 780/ 130 (divide each by 130)

6 = h

7 0
4 years ago
Read 2 more answers
Show all possible arrangements of the letters in the word FRED using a tree diagram. If each of the letters is on a tile and dra
Tanzania [10]

Answer:

24

Step-by-step explanation:

F R E D

F R D E

F E R D

F E D R

F D E R

F D R E

so for each letter u have 6 so 4 x 6=24

4 0
3 years ago
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