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.
Answer:
These two results are identical.
Step-by-step explanation:
Before we can compare these two expressions we need to perform the indicated multiplication.
The first expression is 9c + 2.
After the multiplication indicated, the second expression is 9c + 2.
These two results are identical. Yes, the two expressions ere equal.
Answer:
D. 40
Step-by-step explanation:
Area of triangle: A = 1/2bh
We have <em>b </em>and <em>h</em> already, so simply plug it in:
A = 1/2(16)(5)
A = 8(5)
A = 40 units²
Answer: C
Using 45-45-90 triangle theorem
