Answer:
make shur your using fractions
54 60
x 100 cross multiply
54(100) 60(x)
5400 60x
divided both by 60
5400/60 60/60
90 1
= $90
then you go
54 60
90 100
and use a caculater to see if your answer is coorect
you just fowllow the steps to see if you get 90
Step-by-step explanation:
<span>systematic
this method called "</span><span>systematic random sampling"
</span>
Tiffany: x/3 books
Brother: (4/9)x - 15 books
Sister: x/3 - x/9
Total: x/3 + (4/9)x - 15 + x/3 - x/9
The LCD here is 9. Mult. all terms by 9 and simplify the resulting expression:
3x + 4x - 135 + 3x - x = 7x + 3x - x - 135 = 9x - 135 books (answer)
Answer:
b = 7
Step-by-step explanation:
Since the triangle is right use the tangent ratio to solve for b
and the exact value
tan30° = 
, thus
tan30° = 
= 
and
= ( cross- multiply )
b = 7
Answer:
No.
Step-by-step explanation:
