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mr_godi [17]
2 years ago
11

Given a+b=7 and a-b=3, find the following 3^a÷3^b

Mathematics
1 answer:
gulaghasi [49]2 years ago
3 0

Answer:

27

Step-by-step explanation:

a + b = 7

a - b = 3

2a = 10

a = 5

b = 7 - 5

b = 2

3⁵ / 3² = 3³ using law of indices

3³ = 27.

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3 years ago
troy is going to spain and needs to convert his dollars to euros. He knows that when he goes, $5.00 is equivalent to about 3.45
astraxan [27]

Answer:


Step-by-step explanation:

3.45/5=0.69

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7 0
2 years ago
Fill in the table using this function rule y= 18-3x
Mashcka [7]

Answer:

1:15 2:12 3:9 5:3

Step-by-step explanation:

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4 0
3 years ago
7b + 3 – 4b = 3 – 3(b + 4)
svlad2 [7]

Hello from MrBillDoesMath!

Answer:  b

Discussion:

7b + 3 - 4b = 3 - 3(b+4)  =>

7b + 3 - 4b = 3 - 3b -12 =>

(7b - 4b) + 3   = -3b - 9 =>

3b + 3 = -3b -9    =>      Add 9 to both sides

3b + 12 = -3b -9 + 9  =>

3b + 12 = -3b  =>         ( add 3b to both sides)

6b + 12 = 0 =>             (subtract 12 from both sides)

6b = -12 =>

b = -12/6 = -2


Thank you,

MrB


7 0
2 years ago
Distribute 5 (10+7) ........
IRINA_888 [86]

Answer: 85

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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