Answer:
18
Step-by-step explanation:
You need to find the least common multiple of 9 and 6 - that is 18. In this case you buy 2 packages of pencils and 3 package of pens.
Answer:
X=9 and X=5
Step-by-step explanation:
So you want to get one side to equal zero so you can factor and find x. I recommend subtracting 14x and adding 45 to both sides so you don't have to deal with a negative quadratic.
X^2 - 14X +45 = 0
Now you can factor. Your looking for two factors that equal 45 and add to -14
All factors of 45:
1 and 45, 3 and 15, 5 and 9, -1 and -45,
-3 and -15, -5 and -9
So out of those combinations -5 and -9 both multiply to 45 and add up to -14 so these are our common factors
(X-5)(X-9)=0
X-5=0 add 5 to both sides X=5
X-9=0 add 9 to both sides X=9
Answer:
pq= 12 cm
Step-by-step explanation:
Answer:
The answer is B. Between 4.5 and 6 hours since he started playing
Step-by-step explanation:
An isosceles triangle has 2 sides the same length and 1 side of a different length
so if the 22 is the identical length then you would have another side of 22
and the 3rd side would be 71 - 22 -22 = 27 cm
so you could have 22 and 27
if the 22 is the odd length side then you would have 71 - 22 = 49 / 2 = 24.5
so you could have 24.5 and 24.5
