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olga55 [171]
3 years ago
9

(5n−5)(2+2n) standard form

Mathematics
2 answers:
tekilochka [14]3 years ago
5 0

Answer:

10n^2-10

Step-by-step explanation:

Distribute it to get 10n^2 +10n-10n-10. Then put it all together.

mash [69]3 years ago
3 0

Answer:

10n -10

Step-by-step explanation:

5n * 2n = 10n

-5 * 2 = -10

-10 + 10n = 10n - 10

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An office room is 12 ft by 10 ft with a door that is 30 inches wide. How many feet of baseboard are needed to go around the room
Lina20 [59]
Draw a diagram to illustrate the problem as shown below.
The length of baseboard needed is AB + BC + CD + DE + FE.
Note that 30 in = 30/12 ft = 2.5 ft.

Because of the door opening,
AB + EF = 12 - 2.5 = 9.5 ft
Also,
BC = DE = 10 ft
CD = 12 ft.

The amount of baseboard needed is
AB + BC + CD + DE + FE
= (AB + EF) + BC + CD + DE
= 9.5 + 10 + 12 + 10
= 41.5 ft

Answer:
41.5 feet of baseboard.

7 0
3 years ago
Correct answers only please!
Alla [95]

Answer:

$15865.6

Step-by-step explanation:

Using the given formula :

I = P × R × T

I = 99.160 × 8/100 × 2

I = $ 15865.6

6 0
3 years ago
Read 2 more answers
5x – 19 &lt;1<br> OR<br> - 4x + 3 &lt; -6<br> Solve for x
astra-53 [7]

Answer:

x < 4

OR

x > - 2.25

= 4 > x > - 2.25

Step-by-step explanation:

5x - 19 < 1

5x < 1 + 19

5x < 20

x < 20/5

x < 4

OR

- 4x + 3 < - 6

- 4x < - 6 - 3

- 4x < - 9

x > 9/- 4

x > - 2.25

7 0
3 years ago
30 points for the correct answer
Dahasolnce [82]

Answer:

its either 2/9 or 2/3

Step-by-step explanation:

I solved the top part and got 2/3 and i solved the bottom part and got 1/3 and you can multiply 2/3 and 1/3 and got 2/9

3 0
2 years ago
Let n be the middle number of three consecutive integers. write an expression for the sum of these integers.
mash [69]
(n-1)+n+(n+1)
With n as the middle of 3 integers, n-1 is the integer just before n and n+1 is the integer just after n.
8 0
3 years ago
Read 2 more answers
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