Answer:
the correct answer is C
Step-by-step explanation:
Answer:
50 cm^2
Step-by-step explanation:
In this scale 4 cm = 10 m
and 2 cm = 5 m
10 m x 5 m = 50 m^2
If my answer is incorrect, pls correct me!
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-Chetan K
Is that just the question? I can help you out but it doesn’t make any sense.
You can solve this with next proportion =>
3 : 5 = 4 : x => 3x= 5*4 => 3x = 20 => x=20/3 = 6 (2/3)
The correct answer is x= 6 (2/3)
Good luck!!!
Answer:
66
Step-by-step explanation:
Use the formula for the mean of a set of numbers:
sum of the numbers
average = --------------------------------
count of numbers
Here we know that the average mark was 68, so we can write:
75 + 62 + 84 + 53 + x
average = 68 = ----------------------------------
5
or 274 + x
68 = -------------------
5
Solving for x, we multiply both sides by 5: 340 = 274 + x.
Subtracting 274 from both sides effectively isolates x:
340 = 274 + x
- 274 -274
------------------------
66 = x
The fifth student's mark was 66.
