Answer:
50 7th grade and 40 8th grade
Step-by-step explanation:
1. add to get total number of students, 1440
2. find percentage of total that are 7th grade students and 8th grade student:
640/1440 = ~45% (are 7th grade)
800/1440 = ~55% (are 8th grade)
3. 55% of 90 is 50, and 45% of 90 is 40
Answer
Y=1/2x-3
Explanation
The general equation of a straight line is the form
Y = mx + c
where m ⇒slope of the line.
In the equation given, we make y the subject of the formula then we arrange the equation to resemble y=mx+c.
6y-3x=-18
6y = -18 + 3x
y = -18/6 + 3x/6
-3 + (1/2)x
y = (1/2)x - 3
Answer: 6.66666666666667
Step-by-step explanation:
17/8 and 5/4
When you multiply them together you get 2 11/32
Answer:
1st blank question -269
Second blank question -9
Third blank question -8
Step-by-step explanation:
b=+19=-250 reverse effect 250+19 -269+19=250
-3x-9= 27 negative negative equals positive therfore is 27
8u=-64 8x-8 equal -64
input it in a calculator