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Burka [1]
3 years ago
15

−3 ( −3b + 5 ) + 9 ( 7b + 5

Mathematics
2 answers:
Arturiano [62]3 years ago
8 0
−3 ( −3b + 5 ) + 9 ( 7b + 5

= 6(12b+5)
adelina 88 [10]3 years ago
8 0

Answer:

72b+30

Step-by-step explanation:

Assuming that the other parentheses is after the 5 and not after 7b:

-3(-3b+5)+9(7b+5)

9b-15+63b+45

72b+30

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763 thousand in scientific <br> notation
kherson [118]

Answer:

here u go

Step-by-step explanation:

7.63 x 10^5

7 0
3 years ago
Read 2 more answers
How many four digit numbers can we make from the numbers 5, 6, 7, 9 if you can repeat the digits and use the digit 5 at least on
yawa3891 [41]
Multiply the number of choices for each position together. Three of the numbers can be repeated with the one (5) only being used once.

(4 possible choices) × (3 possible choices) × (3 possible choices) × (3 possible choices) = 4 × 3 × 3 × 3 = 108
4 0
3 years ago
The width of a rectangle is 5n - 3.5 feet and the length is 3.5n + 9 feet. Find the perimeter of the rectangle.
juin [17]

Answer:

17n+11

Step-by-step explanation:

Formula For Perimeter Of Rectangle: 2(Length) + 2(Width)

                                                            Length = 3.5n + 9

                                                            Width =  5n - 3.5

____________________________________________________

-> 2(Length) + 2(Width)

-> 2(3.5n+9) + 2(5n-3.5)

*distribute*

-> (7n+18) + (10n-7)

*distribute*

->7n+18+10n-7

->17n-11

7 0
3 years ago
2x+2y=17<br> 4x-y=25<br> What is the x value of the system of equations
Mrac [35]
X=4.2
For the second equation, y=4x-25. Then you plug that into the first equation, which would form: 2x+2(4x-25)=17. Simplify. 2x+8x-25=17. 10x=42. x=4.2
4 0
3 years ago
Read 2 more answers
Differencee of 53/66-3/11
mars1129 [50]

Answer: 35/66 is your answer!

Step-by-step explanation:

8 0
2 years ago
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