Answer: 4:1
Step-by-step explanation:
Given:- Number of tables in the classroom=6
Number of students on each table = 4
thus number of students in the classroom =6×4=24 students
Now ratio of numbers of students to the tables in the classroom= numbers of students/tables in the classroom=24/6=4/1=4:1
Ratio of numbers of students to the tables in the classroom= 4:1
<u>Here</u><u>, </u><u> </u><u>we </u><u>have </u><u>given </u>
- One isosceles triangle that means the given triangle having two sides equal.
- The dimensions of the triangle are 21cm, 21 cm and 16 cm.
Consider the given triangle as ABC . In ΔABC, AD acts as a median. It means Angle ADB = 90°
<u>Therefore</u><u>, </u>
<u>By </u><u>using </u><u>Pythagoras </u><u>theorem</u><u>, </u>
- It states that the sum of the squares of base and perpendicular height is equal to the square of the hypotenuse.
<u>That </u><u>is</u><u>, </u>
<u>Subsitute </u><u>the </u><u>required </u><u>values </u>
Hence, The required height of the given isosceles triangle is 13.6 cm.
[ Note :- you can also solve this problem by using Heron's Formula but it's too lengthy to solve that's why I have used simple method ]
(5 + x) / 6 = -1....multiply both sides by 6, cancelling out the 6 on the left side
5 + x = -1 * 6
5 + x = -6
x = -6 - 5
x = -11
Answer:
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