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Anit [1.1K]
3 years ago
5

The expression 7 + 2(x – 3) + 5x is simplified correctly in the correct order. Which of the steps has an incorrect justification

?
step a
step c
step d
step b

Mathematics
2 answers:
galben [10]3 years ago
6 0

step c should be the right answer i think

larisa86 [58]3 years ago
4 0

Answer:

it is step c

Step-by-step explanation:

7 + 2(x - 3) + 5x

= 7 + 2x - 6 + 5x

= 7 - 6 + 2x + 5x

= 1 + 7x

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For a Valentine's Day dance, tickets for couples cost $12 and tickets for individuals cost $8. Suppose 250 students attended the
lakkis [162]

Answer: 105 couple tickets and 40 individual tickets

For this I will use the "Graphing Method"

     First, we need to set up two equations.

-> Let x be the number of couple tickets.

-> Let y be the number of individual tickets.

-> It is "2x" because a couple means two.

     $12x + $8y = $1,580

     2x + y = 250

     Next, we will graph this.

-> The point at which the two lines intersect is our solution.

-> See attached.

-> x = 105, so 105 couple tickets

-> y = 40, so 40 individual tickets

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

6 0
2 years ago
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SOMEONE PLEASE PLEASE HELP PLEASE HELP
mr Goodwill [35]

Answer:

see explanation

Step-by-step explanation:

Using the rule of exponents

a^{m} = \frac{1}{a^{-m} } , then

2 ÷ 10^{4} = 2 ÷ \frac{1}{10^{-4} }

To divide leave first, change ÷ to × , turn second upside down

= 2 × 10^{-4}

6 0
3 years ago
I NEED HELP ON THIS!!!!!
seropon [69]
#1 pipers pepperoni pieces- $0.41
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3 years ago
Help is appreicated! (10 points!)
grigory [225]

Answer:

5

Step-by-step explanation:

5

6 0
3 years ago
Which ratio will help to find the value of the missing side of the triangle?
kari74 [83]

Answer:

Correct ratio is:

2/3 = x/4

Step-by-step explanation:

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