Answer:
The first step is to replace the y in y-x=15 with 7x (we can do this because the first equation tells us that they're equal)
solve and get
(2.5,17.5)
or x= 2.5 y=17.5
Step-by-step explanation:
The first step is to recognize that y=7x which means that we can just replace the y in the second equation with 7x
7x-x=15
6x=15
x=2.5
Then we can solve for y
y=7(2.5)
y=17.5
Answer:
p
Step-by-step explanation:
70 cm
ex:
100 cm in a meter
so you’d do 100-30 cm
and that equals 70 centimeters
Answer:
0.25 = 2^-2
The "^" means that -2 is an exponent on top of 2.
Answer:
Interest wil be 10% of 100 which is 10
So,
interest will be Rs.10
and total amount to be payed will be 100+10 which is Rs.110