Answer:
2 to 4 or simplified 1 to 2
Step-by-step explanation:
There 2 green marbles and 4 orange marbles so the ratio is 2 to 4
You can simplify that down to 1 to 2
At the end of 3 years, your savings will have grown to $483.
You will have earned in $83.17 in interest.
Answer:
5x -2y = -2
Step-by-step explanation:
-2x+y=0
-7x+3y=2
Subtract the second equation from the first
-2x+y=0
7x-3y=-2
------------------
5x -2y = -2
Answer: 0.4667
Step-by-step explanation:
According to 68–95–99.7 rule , About 99.7% of all data values lies with in 3 standard deviations from population mean (
).
Here , margin of error = 3s , where s is standard deviation.
As per given , we have want our sample mean 
to estimate μ μ with an error of no more than 1.4 point in either direction.
If 99.7% of all samples give an within 1.4 , it means that
Divide boths ides by 3 , we get
Hence, So must have 0.4667 as standard deviation so that 99.7 % 99.7% of all samples give an within 1.4 point of μ .
255 l ------ 340km
x l -------- 100km
100*255=340x
25500=340x
x=75 litres
