What is the expression for the difference between five times a number and twice that number?
2 answers:
Answer:
5x-2x
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Step-by-step explanation:
Answer:

Step-by-step explanation:
Let's call that number
.
when we are asked for a difference we must substract quantities.
In this case we need the difference between five times a number (the number is represented by
) and twice that number:
five times the number x is equal to

twice that number x is equal to:

thus, the difference is: 
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Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Angle 4 × Angle 3 = 90
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