Answer:
charles 4 years
adam 20 years
Step-by-step explanation:
charles present = x
adams present age 5x
8 years later
charles x+8
adam 5x+8
ATQ
x+8+5x+8=10x
4x=16
x=4
5x=20
Answer:
3x-2 ≥ 4
Step-by-step explanation:
3x-2 _ 4
3x _ 4+2
3x _ 6
x _ 2
Therefore, x ≥ 2
3x-2 ≥ 4
Answer:
y = 3x + 8
Step-by-step explanation:
to find slope intercept if we have 2 points use this formula:
find the slope first: m= (y2-y1)/ (x2-x1)
after get the slope, use this formula:
y-y1 = m(x-x1)
Answer:
m= (y2-y1)/ (x2-x1)
= (2-8)/ (-2-0)= -6/-2 = 3
y-y1 = m(x-x1)
y-8 = 3 (x-0)
y = 3x + 8
hope it helps
Answer:
a) 2.188
b) John's rent is not an outlier
c) His rent has to be higher than $1,235 to be an outlier
Step-by-step explanation:
The mean monthly rent of students at Oxnard University is $780 with a standard deviation of $208.
(a) John’s rent is $1,235. What is his standardized z-score?
We solve using z score formula
z = (x-μ)/σ, where
x is the raw score = $1235
μ is the population mean = $780
σ is the population standard deviation = $208
Hence,
z = 1235 - 780/208
z = 2.1875
Approximately to 3 decimal place = 2.188
(b) Is John’s rent an outlier?
No it isn't
(c) How high would the rent have to be to qualify as an outlier?
John’s rent would have to be higher than $1235
Answer:
a=5/3
Step-by-step explanation:
y=a*x
y+5=a*(x+3)
so 5=3a
a=5/3
