<span>In this question you need to find the lowest common multiple. I like to
do it the factor tree way:<span>
<span>
15
9</span>
/ \
/ \
3 5
3 3
See how there are both a 3 in the 15 factor tree
and there is at least on three in the 9 factor tree. So when you find the LCM,
you combine the two threes from the different factor trees like this:
3 x 5 x 3 = 45
So every 45 minutes the bus would be at the bus
stop together
Now simply add the 45mins onto the 1:25
<span>Answer: 2:10 </span></span></span>
Answer:
x^xtfr
Step-by-step explanation:
The x=7y-4 one and put it to where the x in the other equation is.
A perfect cube is a number that resulted from multiplying a number three times by itself. A perfect cube is also a number that has an exact cube root.
8x^12 ⇒ 2x^4 * 2x^4 * 2x^4
27x^9 ⇒ 3x³ * 3x³ * 3x³
Only two monomials are perfect cubes.
Answer:
Yes, y varies directly with x, and the equation is
.
Step-by-step explanation:
To check where there is a direct relationship between x and y, we need to check whether all the x,y pairs we have fit some rule:
.
For the first pair (x=4, y=6.4),

Therefore
.
For the second pair (x=7, y=11.2),

Therefore
.
For the third pair (x=10, y=16),

Therefore
.
For the second pair (x=13, y=20.8),

Therefore
.
So x does directly vary with y, and we have found out that
.