MATH HELP PLEASE
2 answers:
Answer: 12.5%
Step-by-step explanation:
Given: A set of data representing the heights of 16 students, in centimeters, is shown in the histogram below.
Therefore, the total frequency of students = 16
From the histogram, the frequency of students having height between 160 and 169 cm=2
The percent of students are between the heights of 160 and 169 centimeters is given by :-
Hence, the percent of students are between the heights of 160 and 169 centimeters = 12.5%
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Answer:
Option D is correct.
13x = 39
Step-by-step explanation:
The system of equation is given:
....[1]
.....[2]
Multiply equation [1] by 5 to both sides we have;
.....[3]
Using elimination method:
Add [2] and [3] equations to eliminate y and solve for x, we have;
Divide both sides by 13 we get;
x = 3
Substitute x in [1] we have;
2(3)-y = -4
6-y = -4
Subtract 6 from both sides we have;
-y = -10
Divide both sides by -1 we have;
y = 10
⇒Solution: (3, 10)
Therefore, an equation can replace 3x+5y = 59 in the original system and still produce the same solution is,
13x = 39