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zmey [24]
3 years ago
14

Which is a simplified form of the expression 3a + 7 – a – 7?

Mathematics
2 answers:
zheka24 [161]3 years ago
7 0

Answer:

A) 2a

Step-by-step explanation:

3a+7-a-7

3a-a+7-7

2a+7-7

2a

lord [1]3 years ago
3 0

Answer:

Choice A.

Step-by-step explanation:

3a + 7 - a - 7 = 3a+7 - a+7 = 3a-a = 2a

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#6 from the paper please
BabaBlast [244]

Answer:

EK = 9

Step-by-step explanation:

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x = 7

EK =-5 + 2 × 7

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6 0
3 years ago
Read 2 more answers
From a pile of 100 pennies(P), 100 nickels(N), and 100 dimes(D), select 21 coins which have a total value of exactly $1.00. In y
Murrr4er [49]
So, you need 10 penny, 4 nickles and 7 dimes
Lets, check it.
According to the question,
total coins = 21
7 + 4 + 10 = 21
21 = 21.........................................true
Now,
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4 0
3 years ago
WILL MARK BRAINLIEST HELP ASAP ASAP
Kamila [148]

Answer:

C. AAS

Step-by-step explanation:

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Which of the following describes the transformation from Figure 1 to Figure 2?​
12345 [234]

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Step-by-step explanation:

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Step-by-step explanation:

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