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makvit [3.9K]
2 years ago
14

Plz help me thanks so much :)​

Mathematics
1 answer:
AVprozaik [17]2 years ago
6 0

Answer:

I believe the answer is 6.

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Please Simplify these expressions:
weeeeeb [17]

Answer:

1) 2a+4a+10-6= 6a + 4

2) 3x-5x+7-7= -2x

3) - 15b+10 +10b= -5b + 10

4) - 4d+d-8-6+3b= - 3d - 14 +3b

3 0
3 years ago
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How many diagonals are there in a regular polygon
Valentin [98]

\frac{n(n - 3)}{2} diagonals  ( n is the number of sides )

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2 years ago
Felix and Oscar own a pastry shop. Working alone Felix can decorate 8 dozen cookies in 90 minutes. Oscar, on
Bingel [31]

<em>Working together</em>, decorating 16 dozens of cookies will take 103 minutes.

<u>Let's calculate theor individual work rate</u> :

  • Rate = 1/ time

Felix's rate = 1/90

Oscar's rate = 1/120

Combined rate = 1/90 + 1/120 = (4 + 3) / 360 = 7/360

<u>Time taken for both of the to decorate 8 dozens</u> :

Reciprocal of their combined rate = 1 ÷ (7/360) = 51.428571 minutes

<u>Hence, the time taken to decorate 16 dozens will be</u> :

(16/8) × 51.428571 = 102.857 = 103 minutes (nearest while number).

Learn more :brainly.com/question/18796573

8 0
2 years ago
14.4 A Book and a Cake A book costs $45. Sales tax on the book is 7%. Write two different expressions that represent the final c
snow_tiger [21]

Answer: 1. $45*1.07 | $45(1.07) 2. (0.85)*32 represent the final price of the cake in dollars because (0.85) is the 15% off in decimals.

Step-by-step explanation:

1 if you multiply 45 by 1.07 it will be 48.15 and that's the final cost of the book, same with $45(1.07) is just another way to represent the multiplication.

2 As I said the 0.85 represent the 15% off, and when you multiply it will be less.

3 0
2 years ago
Please help i’ll mark brainlist
jeyben [28]

Answer:I think the answer is multiplication property of equality

Step-by-step explanation:

it is being multiplied to get the answer so that should be the answer

8 0
2 years ago
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