Answer:
y= 500+7x
Step-by-step explanation:
Given data
Total amount for the rent= $500
Cost of food per night= $10
Family charges per night=$60
Let the number of nights be x
and let the total charges be y
Hence, the expression for the situation is given as
y=500+10x+60x
y= 500+7x
Let the breadth be x
length=x+8
according to the question
area of the pool = l*b
105=x*x+8
if u solve this equation further u will get the answer
Answer:
she can serve 2500 i think mark branly if right
Step-by-step explanation:
Answer:
The C.I. at 95% is 185±9.9583 or C.I.[175 to 195].
Step-by-step explanation:
Given:
Mean =185 mg
Standard deviation=17.6
Total number of samples=12
To Find:
95% of Confidence interval .
Solution:
We know that formula for C.I is given by ,
<em>C.I.=mean±Z[standard deviation/Sqrt(Total no of samples)]</em>
So using all above given values we get ,
Here Zscore at 95% is Z=1.96
So
C.I.=185±1.96[17.6/Sqrt(12)]
=185±1.96[17.6/3.464]
=185±1.965[5.0808]
=185±9.9583
In short C.I. is given as at 95% C.I.[175 to 195].
To divide fractions:
Flip the second fraction
Multiply the numerators
Multiply the denominators
Simplify
2/9*10/9
2*10=20
9*9=81
20/81
Hope this helps!!