Answer: 90
Step-by-step explanation:
Its B, 90 on edge 2020.
Please make this the brainliest answer, i need it to boost my rank!
Answer:
$585
Step-by-step explanation:
Find 25% of $450:
$450 × 0.25 = $112.5 ⇒ this is how much money the business is donating.
Find 5% of $450:
$450 × 0.05 = $22.5 ⇒this is how much money the politician is donating.
Add those two amounts to the amount the student raised:
$450+$22.5+$112.5= $585
Answer: 69
Step-by-step explanation: Percent multiplied by the total number of students: 8/100 x 75 = 600/100. (remember it is 8/100 because it’s 8%.)
Then you simplify which will then get you 6.
Afterwards you need to subtract those 6 students from the group of 75. 75-6=69. So, 69 students.
Answer:
They each walked the same amount if you plug 7 into each of their expressions
Step-by-step explanation:
Karen walked 3(7) - 4 or 17 miles
Kristen walked 2(7) + 3 or 17 miles
Complete Question
A set of magical wand prices are normally distributed with a mean of 50 dollars and a standard deviation of 4 dollars. A blackthorn wand has a price of 45.20. What proportion of wand prices are lower than the price of the blackthorn wand? You may round your answer to four decimal places
Answer:
0.1151
Step-by-step explanation:
We solve using z score formula
z = (x-μ)/σ, where
x is the raw score = $45.20
μ is the population mean = $50
σ is the population standard deviation = $4
We are solving for x < 45.20
Hence:
z = 45.20 - 50/4
z = -1.2
Probability value from Z-Table:
P(x<45.20) = 0.11507
Approximately to 4 decimal places = 0.1151
Therefore, the proportion of wand prices that are lower than the price of the blackthorn wand is 0.1151
