Answer:
10.5 hours
Step-by-step explanation:
To find the number of hours she babysat last week subtract 5 from 11 which is 7 hours. 7 hours is equal to 2/3 of the many hours. If she babysat h hours last week then solve for h using 2/3 h = 7.
Solve the equation by multiplying each side by the reciprocal.
3/2 * 2/3h = 7*3/2
h = 21/2
h = 10.5 hours
Should just be your largest dimension which is 12, right?
I don't know if this is correct..
warning: I may be wrong
so you have to do a proportion..
it's easy!
x1/y1 = x2/y2
so, plug in the values!
12/8 = x/12
now solve for x.
cross multiply:
8x = 144
divide by 8:
x = 18
there!
NO that's the answer xd because the sum of any 2 sides of a triangle must be greater than the measure of the third side...
