First you need to divide ₹134 by 12 to find the cost of each pen.
Multiply the cost of each pen by 5 to find the cost of 5 pens.
≈ ₹55.8 (correct to 1 decimal place)
Answer:
Its 34 times 87
Step-by-step explanation:
34 times 87 is 2958
You would subtract 2/3 from 5/6 and that should give you 1/6
x=1/6
5sqrt(x+7)=-10
Dividing both sides by 5:
5sqrt(x+7)/5=-10/5
sqrt(x+7)=-2
Squaring both sides of the equation:
[sqrt(x+7)]^2=(-2)^2
x+7=4
x+7-7=4-7
x=-3
Replacing in the original equation:
5sqrt(x+7)=-10
5sqrt(-3+7)=-10
5sqrt(4)=-10
5(2)=-10
10=-10 It's not equal, then x=-3 is an extraneous solution
