Answer:
B
D
Step-by-step explanation:
Answer:
Age of Alice = 25, Age of Jane = 20.
Step-by-step explanation:
Let age of Alice = x
Then age of Jane is 80% of the age of Alice
=> Age of Jane = 80% of x = 80/100 * x = 0.8x
Adding the two ages gives 45.
The two ages are x and 0.8x.
The sum of the two ages is x+ 0.8 x = (1+0.8)x = 1.8x.
=> 1.8 x = 45
Dividing both sides by 1.8, x = 45/1.8
=> x= 25
But x represents the age of Alice.
So age of Alice is 25.
Age of Jane = 0.8* 25 = 20
Verification: Adding the two ages gives 45.
Three unit's would be the numbers:
1, 2 and 3.
Any number you choose must be greater than 3 for example:
5, 8 or 10
Hope it helped,
BioTeacher101
Answer:
x is 29
Step-by-step explanation:
In a rhombus diagonals bisect perpendicularly.
let the centre point of the rhombus be O.
By seeing the diagram we can say that Angle DBC is congruent to angle ADB.
We can say they are congruent because they are symmetric about the diagonals and also by the principle of parallel lines.
Also ADB is a right angled triangle so ,
Hence the value of x is 29.
Answer:
Distance between A ----> B : 2 cm
B ---> C: 3 cm : 600 meters
A----> C: 4 cm
3:600 meters scaled
So its 200 meters per every 1 cm!
From A to B : 400 meters
From B to C : 600 meters
Frok C to A: 800 meters
Therefore we sum 400+600+800= 1800 meters
