X is greater than or equal to 2
The missing justification is the Subtraction property of equality.
This is because to get 1/3x=4, you need to subtract 3 from both sides.
Answer:
1 ruler costs $0.60
Step-by-step explanation:
$20-$4.70=$15.30
Calculator =$7.50
3 Packs of Pens = $1.80 each
4 rulers= x each
$7.50 + 3($1.80) + 4x = $15.30
7.50 + 5.40 + 4x = 15.30
12.90 + 4x = 15.30
4x = 2.40
x = 0.60
Answer:
58
Step-by-step explanation:
arrange in order and find the middle number, if two numbers add together and divide by 2
Answer: C, 40/9
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