220=A+S (adult plus student)
s=220-a
2.50a+1.50s=465
1.50s=-2.50a+465
s=-1.67a+310
then set those equal to each other
220-a=-1.67a+310
220=-.67a+310
-90=-.67a
.67a=90
a=60
then put a back into the first equation
220=S+A
220=s+60
s=160
a=60, s=160
divide the price of the olive oil by the volume of the olive oil
to find the price per ounce. 5.88/25oz=0.2352 dollars/ounce. Then you
have to multiply the volume of the bottle by .60 to find what 60% of the
volume is.
0.60x25=15 ounces. since in the first two weeks she used 15
ounces which has a price of 0.2352 dollars/ounce you have to multiply
15 by 0.2352 which equals 3.528 dollars.
What it's telling you to do is take the nth root of something raised to the mth power. Without the m, it would look like this.
Without the n it would look like this.
When they are put together, it looks like this.
Answer:
<u><em>
63</em></u>
Step-by-step explanation:
Rewriting input as fractions if necessary:
3/7, 1/9
For the denominators (7, 9) the least common multiple (LCM) is 63.
LCM(7, 9)
Therefore, the least common denominator (LCD) is 63.
99
+1,000
-----------
1,099
Why did that seem so hard for you?