Area is supposed to be multiplied by 2.
Answer:
Step-by-step explanation:
£63 = 135 × 63
= Rs . 8505
Rs . 8505 = 8505 / 105
= $81
Answer:
Father's age is 50, Son's age is 10
Step-by-step explanation:
X+Y=60
X-Y= 40
Let X represent the Father's age while Y represents the Son's age;
therefore, from the two equations, the value of X is
X= 60-Y
X= 40+Y then putting in the value of x
(40+Y) + Y= 60,
40+2Y=60
2Y=60-40 =20
Y= 10,
Now that we know the value of Y, we can get the value of x
If X+Y=60, then
X+10=60,
X=60-10,
X= 50
Answer:
-3-(-7)
when subtracting a negative the signs turn in to addition
-3+(+7)
4
Step-by-step explanation:
