Sinα=cos(90-α) this is an identity which you need to know...
in this case:
sin49°=cos41°
Answer:
5,000
Step-by-step explanation:
=10÷2[500÷5{6+4}
=10÷2[500÷5×10]
=10÷2[100×10]
=10÷2×1000
=5×1000
=5000
There are 14 thirds in 4 2/3
Let x be the unknown number
x×55%=121
x=121÷55%
x=220
So 121 is 55% of 220
