If t is the amount of time she used it, then it lost t*(5/min) percentage points; then she charged it for 2t, so it gained (2t)*(2/min) =t*(4/min) percentage points.
This means that above this time period, the phone lost t*(5/min)-t*(4/min) =t*(1/min) percentage points; because this loss is recognized to be 10 percentage points, this means t*(1/min) =10, so t=10 min.
This means that she used her phone for 10 minutes and charged it for 20 minutes.
If the diameter is d = 8, then we divide that in half to get the radius of r = 4.
If the radius is r = 9, then we double it to get the diameter of d = 18
The formulas are:
- radius = diameter/2
- diameter = 2*radius
I'll let you determine the others.
The largest square that can fit in a square of radius 3cm can have its diagonal length twice its radius.
But diagonal of a square is root square root of {2} x length of each side.
Hence from above, diagonal length is 6 cm and so, the side can be 3*(2^1/2)
So area of square is (3*(2^1/2))^2 = 18 cm^2
Answer:
640 times greater
Step-by-step explanation:
Given the following
area of the pacific ocean = 6.4x10^7 square miles
area of the gulf of mexico = 10^5 square miles
Taking the ratio of the distances
pacific ocean/gulf of mexico = 6.4x10^7/10^5
pacific ocean/gulf of mexico = 6.4 * 10^2
pacific ocean/gulf of mexico =640
pacific ocean = 640gulf of mexico
Hence the area of the pacific ocean us 640 times greater than the area of the gulf of mexico
