it is called dun dun dun this Equivalent Ratio
The only set of elements that satisfied the equation 2x-1= -13 is {-6}.
<h3>What is a set?</h3>
A set is a combination of specific quantities in which the meaning of each variable must be the same.
For example {1,2,3,4,5,6...} is a set of natural numbers in which each variable is representing a natural number so the overall meaning is the same among all.
Another example could be a set of whole numbers like that.
Given the equation,
2x-1= -13
By taking -1 right-hand side
2x = -13 + 1 = -12
By dividing 2
x = -6
Hence "The only set of elements that satisfied the equation 2x-1= -13 is {-6}".
To learn more about the sets,
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28% = 28/100 = 0.28
$100.80/0.28 = $360 ← answer
Answer:
1) A giraffe's heart will beat 910 times in 14 minutes
Table for 1)
Beats 65 325 910
Minutes 1 5 14
2) $8.80 for 4 bags of chips
Explanation for 2)
8.8 divided by 4 equals 2.2
4.5 divided by 2 equals 2.25