Answer:
20 cm
Step-by-step explanation:
5x + 32 + 6x + 4 = 80
11x + 36 = 80
11x = 44
x = 4
sides of triangle:
5(4) = 20 cm
32 cm
6(4) + 2 = 26 cm
Answer:
word
Step-by-step explanation:
Answer:
48:29
Step-by-step explanation:
So lets find the ratio without simplest form: the ratio is 96:58
When writing the ratio we write the one mention first
Now lets write it in simplest form practically reducing it to its lowest term
( we first write it as a fraction)
÷
=48:29
So the answer is 48:29
HOPE IT HELPED
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.
