Answer:
25.5 and 37.5
Step-by-step explanation:
x+y=63
x-y = 12 then x = 12 + y sub this into the first equation
(12+y) + y = 63
12 + 2y = 63
2y = 51
y = 25.5 then x = 37.5
Answer:
c or a i just did the test
Step-by-step explanation:
Answer:
6cm ; 22cm
Step-by-step explanation:
Given that:
Total Length, AD = 28cm
AB =x cm
BC = (x +5)cm
CD = 2x - 1 cm
4x + 4 = 28
4x = 28 - 4
4x = 24
x = 24 / 4
x = 6cm
The length of BD
BD = BC + CD
BD = (x + 5) + (2x - 1)
x = 6
BD = (6 + 5) + (2(6) - 1)
BD = 11 + (12 - 1)
BD = 11 + 11
BD = 22 cm
The sample mean is μ=105, and sample standard deviation is σₓ=
.
The Z-score is
.
Refer to standard normal distribution table.
The required probability is

Answer:
Jacob's rate of return is <u>19.2%</u>.
Step-by-step explanation:
Given:
Jacob invested $500 in a stock and after a year had $596.
Now, to find the rate of return.
So, we get the amount of return first:
Present value - value before a year = Return.
$596 - $500 = $96.
Now, to get the rate:
Return / Value before a year × 100.



Therefore, Jacob's rate of return is 19.2%.