A = -17/6
B = -1/2
C = 17
D = 17/6
Answer:
x= -17/6
Step-by-step explanation:
10=-9/2x-7-3/2x
multiply all by 2
20=-9x-14-3x
add -9x to -3x
20=-12x-14
replace 20 with -12x and put -12x as a positive
12x=-14-20
add -14 to -20
12x=-34
divide both sides by 12
x= -17/6
Answer: The class set up 495 chairs.
Step-by-step explanation:
Hi, to answer this question, first we have to multiply the number of rows (20) by the number of chairs in each row (25).
Mathematically speaking:
20x25= 500
Since they were 5 chairs short, we have to subtract 5 to the previous result.
500-5 = 495
The class set up 495 chairs.
Feel free to ask for more if needed or if you did not understand something.
Answer:
The students set up 495 chairs
Step-by-step explanation:
if there are 20 rows and 25 chairs in each row, then you multiply 20 by 25, giving you 500. They had 5 chairs too little, therefore they set up 495 chairs.
Hope this helps!