9x + 3 = 7x +19
2x + 3 = 19
2x = 16
x = 8
So, x (8) is the number of chairs in each row with these setups.
Plug 8 into one of the equations and you will find how many chairs total there are.
9(8) + 3 = 75
There are 75 chairs total
Answer:
take the square root of 220 to get side lengths
which is approximately 0.742
multiply it by 0.05 to scale it
which is approximately 14.832
square it to get the area of the new scaled object
and your left with 0.55ft^2
not; this method is inefficient but I don't remember the amount by which area scales to side lengths :P
Step-by-step explanation:
Answer:
X cubed plus one
Step-by-step explanation:
Answer:
72 doctors recommended the medicine
Step-by-step explanation:
The question above is interpreted thus.
9 out of 10 implies 9/10. If 80 doctors were surveyed, the number of doctors that recommended the medicine is 9/10 of 80 doctors. Therefore,
Therefore, in a survey where 9 out of 10 doctors recommended a certain medicine; and 80 doctors were surveyed, 72 doctors recommended the medicine.
Answer:
365 1/4 days
Also I haven't seen your other question