Answer:
The score separating the bottom 47% from the top 53% is 112.8
Step-by-step explanation:
Let X denote the random variable whose values are normal with a mean of 114.5 and a standard deviation of 23.
Compute the 47th percentile as follows:
[tex]P(X<x)=0.47\\\\P(\frac{X-\mu}{\sigma}<\frac{x-114.5}{23})=0.47\\\\P(Z<z)=0.47[/tex]
The corresponding z-value is,
z = -0.075
*Use the z-table.
Compute the value of x as follows:
[tex]\frac{x-114.5}{23}=-0.075\\\\x=114.5-(0.075\times 23)\\\\x=112.775\\\\x\approx 112.8[/tex]
Thus, the score separating the bottom 47% from the top 53% is 112.8
What is 3/5 of 9 in a whole number?
Answer:
5.4
Step-by-step explanation:
This isn't a whole number so I'm not sure if they want to round to 5?
(Also i did 9*.6 because 3/5 is .6)
It says choose all of the multiple choice answers that are true about the diagram
Answer:
g
Step-by-step explanation:
across from each other and same measurement
What is the slope of a line parallel to the line whose equation is x+2y=10
Answer:
-1/2
Step-by-step explanation:
It’s the answer
Marcelina uses a blend of white corn and yellow corn to make tortilla chips at her restaurant. She needs to buy
50 kg of corn in total for her next order. White corn costs $0.30 per kilogram, yellow corn costs $0.15 per
kilogram, and she wants to spend $12 total.
Here's a graph that shows a system of equations for this scenario where is the amount of white corn she buys
and y is the amount of yellow corn she buys.
What does D represent in this context?
CORRECT (SELECTED)
Marcelina spends less than the intended amount of money and buys the correct amount of corn.
Point DDD is below line aaa, so it represents a scenario where she spends less than \$12$12dollar sign, 12. Also, point DDD is on line bbb, so it represents a scenario where she does buy 50\,\text{kg}50kg50, start text, k, g, end text of corn.
pasted from Khan Aacdemy
Marcelina spends less than the intended amount of money and buys the correct amount of corn.
What is an equation?An equation is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
The system of equations for the given scenario is:-
0.30x + 0.15y = 12
x + y = 50
Point D is below line a, it represents a scenario where she spends less than $12. Also, point D is on line b, it represents a scenario where she does buy 50kg of corn.
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Keelin's hourly rate went from $9.50 per hour to $10.25 per hour. What
is the percent increase?
The percentage increase in the hourly rate will be 7.89%.
What is the percentage?The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.
Given that Keelin's hourly rate went from $9.50 per hour to $10.25 per hour.
The percentage increase will be calculated as:-
Percentage increase = ( 10.25 - 9.50 ) / 9.50
Percentage increase = 0.75 / 9.50
Percentage increase = 0.0789 x 100
Percentage increase = 7.89%
Hence, the percentage increase is 7.89%.
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when adding two rational numbers tell what the sign of the sum will be if one rational number is positive and one is negative
Answer:
True
When you add two negative numbers the sum is always negative ex.
When you add two numbers with different signs get the difference and get the sign by the larger absolute value ex.
Step-by-step explanation:
Please answer I need help
Answer:
Maybe 3 1/2 but they don't give enough information
The model below represents an equation. 2 long x tiles and 3 square 1 tiles = 3 long x tiles Which represent like terms in the model of the equation? 2 long x tiles and 3 square 1 tiles 2 long x tiles and 3 long x tiles 3 long x tiles and 3 square 1 tiles 1 long x tile and 1 square 1 tile
Answer:
Step-by-step explanation:
B
Answer: B <3
Have an amazing day yall
Find the volume of a right circular cone that has a height of 17.6 m and a base with a
radius of 8 m. Round your answer to the nearest tenth of a cubic meter.
Answer:
1179m^3
Step-by-step explanation:
Given radius=8m
Height=17.6m
Volume of the cone=1/3πr^2h
1/3 πr^2h
=1/3×3.14×8×8×17.6
=1178.96
Nearest tenth is 1179
So volume is 1179m^3
what is 35.769 rounded to the nearest hundredth
Answer:
35.770
Step-by-step explanation:
If the number behind the hundreths place is bigger than the hundreths place then you round up 1
Answer:the answer is 35.769 to the nearest hundredth is 35.77
Step-by-step explanation:
Find the value of x.
A.75
B.25
C.35
D.105
Answer:
B. 25
Step-by-step explanation:
[tex]3x \degree = 75 \degree \\ (alternate \: \angle \: s) \\ \\ 3x = 75 \\ \\ x = \frac{75}{3} \\ \\ x = 25[/tex]
17+8x=3x+62 if x =16
X=16 would not be true because it doesn’t work. X would equal 9.
Pleaseeee help!!!!!!!!!!! I'll see if I could give you Brainliest
Answer:
6/4 or 1 1/4
Step-by-step explanation:
1/4 times 6 because the question is asking for the recipe to be made 6 times. So 1/4 times 6 or 1/4 time 6/1 is 6/4 or 1 1/4.
Answer:
2/3 cups
Step-by-step explanation:
if we put all ingredients toghether will have
1/4+2/3+1 and 1/3=1/4+1 and 2/3+1/3=1/4+ 2= 2cups and 1/4 or 2.25 cups
So 2.25 cups is 1 batch of dressing
6 cups is x batches of dressing
cross multiply x=6*1/2.25= 6/2.25
so insted of 1/4 vineger will need (1/4)(6/2.25)=6/9=2/3 cups of vinegar
z varies jointly with w, x, and y. z=24 when w=2, x=3, and y=8.
Answer:29739
Step-by-step explanation:
neosbs elenelend sidn
if z varies jointly with w, x, and y. z=24 when w=2, x=3, and y=8 then z=1/2wxy
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given,
z varies jointly with w, x, and y
z=kwxy
Where k is constant.
k=z/wxy
Now plug in values of z=24, w=2, x=3, and y=8.
k=24/2.3.8
k=24/48
k=1/2
So z=1/2wxy
Hence, if z varies jointly with w, x, and y. z=24 when w=2, x=3, and y=8 then z=1/2wxy
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HELP ASAP True or False: The church was able to perform all of Palestrina’s masses.
Answer:
true
Step-by-step explanation:
Amir is making flags, he sews 19 stars and 31 hearts on each flag. He has 589 stars and 899 hearts. How many flags can he complete?
Are the ratios 16 : 8 and 2:1 equivalent?
Answer:
yes they are
Step-by-step explanation:
Answer:
no they are not, i had a question and it was no they were not ratios
Step-by-step explanation:
PLZ HURRY IT'S URGENT!!!!!
Solve by graphing. y=x+6
y=2x
options:
(3, 9)
(9, 3)
(6, 12)
(12, 6)
2. Solve by graphing. {x+2y=2
x−2y=−6}
options:
(-2, -2)
(2, -2)
(2, 2)
(-2, 2)
Solve by graphing. {2x+y=2
4x+2y=−2}
options:
(-2, -1)
(-2, 2)
(-1, 2)
No solution
Step-by-step explanation:
1.
(3,9)
2.
(-2,2)
3.
No solution
What value of y makes the statement true? -6(y+15)=-3+6
2. Find the unit rate demonstrated in the graph
below.
Answer:B is the answer for this question
PLZ HELP FAST
Use your exponent rules to express as a single power, 94 ÷ 272
Explain the difference between -24 and (-2)4, and evaluate each power
Answer:
3196 to the 8th power
the difference is that -24 is just an integer and (-2)4 is asking you to multiply -2 by positive 4
Step-by-step explanation:
Which statment explains how to round 4,826 to the nearest hundred?
Round up to 4,900 because 8 > 5.
Round down to 4,800 because 2 <5.
Round up to 4.900 because 6 > 5.
Round up to 4.900 because 2 < 5.
Answer:
4800
Step-by-step explanation:
you overcomplicated it. just see which one is closer. if it is over 50, you round up to 4900. if it is under 50 you round down to 4800.
same applies with numbers like 54 to the nearest 10. if its under 5 then round down, over 5 then round up.
Look at the picture simply expression and answer without negative exponents please
a stadium had 47,000 seats. Seats sell for $25 in section A, $20 in section B, and $15 in section C The number of seats in Section A equals the total number of seats in Section B and C. Suppose the stadium takes in $1,013,000 from each sold out event. How many seats does each section hold?
Step-by-step explanation:
Section A holds 24,500 seats
Section B hold 14,400 seats
Section C holds 10,100 seats
Hope it help :)!
Solve for y
5x-2v=15
*please help!!
Answer: -2 + 5x - 15 = 0
Step-by-step explanation: you have to subtract 5x and 2v so i had to switch them around for a proper answer then subtract 15 from -2v and 5x and you get 0
Write an equation of the circle with center (3, -7) and radius 5.
r^2=(y-k)^2+(x-h)^2
5^2=(y-(-7)^2+(x-3)^2
25=(y+7)^2+(x-3)^2
What is the percent of increase or decrease to nearest percent?
From 14 points to 40 points
A)24% decrease
B)100% increase
C)186% increase
D)40% decrease
Answer:
is B
Step-by-step explanation:
....
What is the circumference of a circle with a radius of 4cm? .
Answer:
C≈25.13cm
Step-by-step explanation:
PLEASE HELP!
DUE SOON STEP BY STEP PLEASE PLEASE HELP ASAP
Answer:
Step-by-step explanation:
yep your correct :)
At a hardware store, they can cut a length of rope off of a big roll, so you can buy any length you like. The cost for 6 feet of rope is $7.50. How much would you pay for 50 feet of rope, at this rate?
Answer:
It should be 62.5 or 62.50.
Step-by-step explanation:
Here's why..........it would be very difficult to it another way so here is what I did....you have to find out how much 1 foot would cost which was 1.25 then multiply that by 50 and you will get 62.50.
