1. Which Transformation would result in an image NOT congruent to its pre-image?
2 answers:
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✳︎ ✳︎ ✳︎ ✳︎ ✳︎ ✳︎ Hello There! :)
To determine whether the two expressions are equivalent, we take the second expression and distribute 2:
2(3x+1)
6x+2=2+6x
And now we know the two expressions are equivalent. If you look, you will remember the Commutative Property that states:
a+b=b+a
In this case, a=6x and b=2.
So we know that the two expressions are equivalent.
Hope this helps! :)
We can rephrase the question as "What percent of 50 is 20?".
"What percent ..." is an unknown. We'll use the variable x to represent this unknown.
The word 'of' in mathematics can mean 'multiply'. Likewise the word 'is' can mean 'equal'.
Now we have the phrase "20 equals to x times 50".
Or in an equation: 20 = x * 50
Solve for x.
20 = x * 50
= x <-- Divide both sides by 50
Simplify the fraction.
Convert the fraction into a decimal.
= 0.4
Convert the decimal into a percent.
0.4 = 40%
So, 40% is the answer.
"What percent ..." is an unknown. We'll use the variable x to represent this unknown.
The word 'of' in mathematics can mean 'multiply'. Likewise the word 'is' can mean 'equal'.
Now we have the phrase "20 equals to x times 50".
Or in an equation: 20 = x * 50
Solve for x.
20 = x * 50
Simplify the fraction.
Convert the fraction into a decimal.
Convert the decimal into a percent.
0.4 = 40%
So, 40% is the answer.