Can anyone help i don't get it
2 answers:
Answer:
x = 1/2
Step-by-step explanation:
4/5 * x = 2/5
We need to multiply by the reciprocal to get x alone
The reciprocal of 4/5 is 5/4
Multiply both side by 5/4
5/4 * 4/5 *x = 2/5 *5/4
x = 10/20
We can simplify by by dividing the top and bottom by 10
x = 1/2
1/2 because 2/4 is just half of 4/5
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Combine the fractions by finding a common denominator
Exact form:
5/48
Decimal Form:
0.10416666...
Answer:
its not clear. please send clear picture
Answer:
45 km/h
Step-by-step explanation:
Speed = x, distance= 360 km
------------
- 360/x= 360/(x-5)- 1
- 360/(x-5)-360/x= 1
- 360x-360(x-5)=x(x-5)
- x^2-5x=360*5
- x^2-5x- 1800=0
- x=45 km/h
One altitude of the parallelogram = 2*2 = 4 cm
Area = altitude * base = 24
One side = 24/4 = 6.
The other altitude = 2*3 = 6 cm
so other side of parallelogram = 24/6 = 4 cm
So perimeter = 2*6 + 2*4 = 20 cm answer
