Answer:
Step-by-step explanation:
Not all operations, only multiplication and division is done on both, numerator and denominator. So that the fraction value doesn't change (like eqivalent fractions)
Answer:
1/4
Step-by-step explanation:
5/20 because you have 5 possibilities to pulling out a blue one from all in all 20
Simplified :
5/20 divided by 5
1/4
Bonus in percent
100%:4= 25%
Answer: a) Length of wire to replace old one=9ft
b) Length of wire=3.09ft
Leftover wire=0.91ft
Step-by-step explanation: from the right angle triangle, Tan&=20/15
&=53.13°
Length of wire,x=cos 31.13=x/15
15cos31.13
X=9
b) Tan&=10/6
Tan^-110/6
&=59.05
Length= 6cos59.04
X=3.09
4-3.09=.91= leftover wire
Answer:
The measure of angle RST is 
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
-----> equation A
-----> equation B
equate equation A and equation B




The measure of angle RST is equal to

Answer:
the base is 10 and the height is 6.4