6+4/5a=9/10a
make bottom numbers same
into 10
60/10+8/10a=9/10a
minus 8/10a from both sides
60/10=1/10a
multiply both sides by 10
60=a
Answer:
4/5
Step-by-step explanation:
<u>Given</u>,
Area of the triangle = 1/4 square meters
From the diagram,
Height = 2/5 m
<u>To find</u> : Length of the base
<u>Formula</u> : -
A = bh/2
Here,
A denotes Area
b denotes Base
h denotes Height
A = 1/4
h = 2/5
A = bh/2
Cross multiply,
A * 2 = bh
2A = bh
2 * (1/4) = b * (2/5)
(1 * 2)/4 = (b * 2)/5
2/4 = 2b/5
1/2 = 2b/5
Cross multiply,
1 * 5 = 2 * 2b
5 = 4b
b = 4/5 meters
Hence,
The length of the base is 4/5 meters.
Line AB + Line BC = Line AC
So we plug in our given information to follow that format, solve for x, and plug in our value for X to find the measurement of the line segment the question is asking for.
(8x + 8) + (4x + 2) = 22
Combine like terms:
12x + 10 = 22
Subtract 10 from both sides to isolate the variable and its coefficient:
12x = 22 - 10
12x = 12
Divide both sides by 12 to isolate the variable X:
x = 12/12
x = 1
The question asks for line BC.
BC = 4x + 2
4(1) + 2
4 + 2
6
BC is 6 units long.
Answer: 80th percentile
Step-by-step explanation:
There were 19 competitors below him and 5 competitors above him.
Total number of competitors is:
= 19 + 5 + Shawnte
= 25 competitors
Out of these 25 competitors, Shawnte took the 20th position.
Percentile is:
= 20/25 * 100
= 80th percentile