Answer:
see the picture for the answer
Answer:
4 dimes and 8 quarters
Step-by-step explanation:
Let d = number of dimes.
Let q = number of quarters.
d + q = 12
10d + 25q = 240
-10d - 10q = -120
(+) 10d + 25q = 240
---------------------------------
15q = 120
q = 120/15
q = 8
d + q = 12
d + 8 = 12
d = 4
Answer: 4 dimes and 8 quarters
Answer:
... pie 3/4. Quick Definition: A Mixed Fraction is a whole number and a fraction combined, ... To make it easy to add and subtract them, just convert to Improper Fractions first: ... Example: What is 2 3 4 + 3 1 2 ? ... Example: What is 3 5 8 + 1 3 4 ... Make same denominator: 7 4 becomes 14 8
Step-by-step explanation:
Answer: Interval would be (0.29,0.58).
Step-by-step explanation:
Since we have given
n = Sample size = 54
Variance = 0.44
we need to find 98% confidence interval to estimate the variance.
So, we will use "Chi square distribution"
For this , we will find
df = n-1=54-1=53
Interval would be
similarly,
So, it becomes,
Hence, interval would be (0.29,0.58).
Answer:
2x + 2y + 2
Step-by-step explanation:
x+ 2y + x +2 (combine like terms)
x + x + 2y + 2
2x + 2y + 2
