E=Pt where e= energy P= power t= time
E=1.200kiowatt/15 minutes
E={1200/100*1000}/15
E=800 watt/minute
9x+4=5x+20
——————
9x-5x=20-4
—————-
4x=16
————-
X=4
————
My deepest apologies if my answer turned out to be wrong but i tried my best so best of wishes!!
Answer:
rth sdh h trh
Step-by-step explanation:
trh rhgf
The slope will be positive because -/-=+ and +/+=+
Answer:
%∆C = 249.22%
the percentage increase in the cost of his car insurance is 249.22%
Step-by-step explanation:
Given;
Cost of car insurance last year C1 = £256
Cost of car insurance this year C2 = £894
Percentage increase = change in cost/initial cost × 100%
%∆C = ∆C/C1 × 100%
%∆C = (C2-C1)/C1 × 100%
Substituting the given values;
%∆C = (894-256)/256 × 100%
%∆C = 249.21875%
%∆C = 249.22%
the percentage increase in the cost of his car insurance is 249.22%
