Answer:
7
Step-by-step explanation:
21×1/3
21÷3=7
hope I've helped
Answer:
Simplify the expression.
0.02977742
Step-by-step explanation:
i think i hope its right
Answer:0.25
Step-by-step explanation:
Just type it in a calculator
Answer:
3x - y = 0; 2x - y = -5
Step-by-step explanation:
Let x be the present age of Hans and y be the present age of Grace,
Since, in present Grace is three times as old as Hans,
⇒ y = 3x
⇒ 3x - y = 0
Now, after 5 years,
The age of Hans = x + 5,
And, the age of Grace = y + 5
Also, in 5 years Grace will be twice as old as Hans is then,
⇒ y + 5 = 2 ( x + 5 )
⇒ y + 5 = 2x + 10
⇒ 2x - y = -5
Hence, the required system of linear equations is,
3x - y = 0; 2x - y = -5
<h2>what is the equation so i could answer it </h2>