Answer:
Step-by-step explanation:
let the number of dimes=x
and number of quarters=y
x=2y
0.10 x+0.25 y=2.25
or 10x+25y=225
divide by 5
2x+5y=45
2 ×2y+5y=45
4y+5y=45
9y=45
y=45/9=5
x=2y=2×5=10
Hence dimes=10
quarters=5
There is a 68% probability that the manager chooses someone who speaks Spanish.
There are 8 people that don't know Spanish. That leaves 17 people that do speak Spanish.
25 - 8 = 17
17 out of 25 is 68%
The answer to the problem is. -8b*2+21b.
Answer:
x = 
Step-by-step explanation:
Using the sine ratio in the right triangle and the exact value
sin60° = 
sin60° =
=
=
( cross- multiply )
x ×
= 8 ( divide both sides by
)
x =
×
( rationalising the denominator )
x = 