B. 25% because 125 divided by 500 is 0.25
Substitute y with 3
7x + 2(3) = 48
7x + 6= 48
Minus 6 over
7x = 42
X= 6
Hope this helps!
Answer:
y=4, -4
Step-by-step explanation:
2^2 + (2√3)^2 = y^2
4+ (2√3)^2 = y^2
y^2=4+12 (here we square the values inside bracket which turns 2 into 4 and when you square a square root it gets rid of the root so you are left with 3 which is multiplied to 4 and you get 12.)
y^2= 16
y=4, -4 (when you square root a positive value you get one positive and one negative answer because here (-4) x (-4) = 16 (because multiplying two negatives gives us a positive.
Here,
cost of 3 handkerchiefs = Rs.2.29
Cost of 1 handkerchief = 2.29 ÷ 3
= Rs. 0.763
Therefore, cost of handkerchief per dozen = Rs. 0.763 × Rs.12
=Rs.9.156