you can estimate 57.8 and 81 then to check you can do 57.8 divided by 81
Answer:
I believe its 1.5
Step-by-step explanation:
Hope it helps srry if im wrong.
In 7th grade:
red-hair students =58
another color hair students =609
In 8th grade:
red-hair students =60
Let's assume
another color hair students =x
now, we are given
The numbers of red-haired students in 8th grade are proportional to the numbers in 7th
so,

now, we can solve for x
we get

we get

so, students have another color hair in 8th grade is 630.........Answer
Answer:
The last one
Step-by-step explanation:
In a right triangle the expression of the sin is the quotiont of the opposite side and the hypotenuse
- sin x° =

4x-(5-x)=8[4-(8+2x-1)]
answer: x= -19/21