z-scores are used to describe normal distributions
The interpretation of a 2.5 z score is that, Hayden's score is 2.5 standard deviations below the 550
How to interpret the z-scoresThe z-score is given as:
z = 2.5
The mean and the standard deviation are:
Mean = 550
Standard deviation = 100
A z-score is the number of standard deviations above or below the mean.
Hence, a 2.5 z score is that, Hayden's score is 2.5 standard deviations below the 550
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major has 25 free minutes left until he needs to head to tennis practice he already spent four of the minute playing a video game what is the maximum number of minutes he can spend doing homework be for he needs to leave for practice
one step inequality word problems
Answer:
ok so he has 25 minutes in total and then we need to subtract the time hes alredy used so
25-4=21
so he has 21 minutes to do homework
Hope This Helps!!!
What is the slope of the line shown?
Step-by-step explanation:
I think y axis and x axis shows the light colour not sure about it
Please help me and please dont say something thats not related to my post. Also please explain your answer so I can understand it.
Answer:
A.9
Step-by-step explanation:
it asks how many the shelf can hold which would mean you should divide :
What is the slope of the line graphed below?
Answer:
B. 1/5
Step-by-step explanation:
Start at point (1,-2)
Then, go right 1 and up 5 to reach point (2,3)
pls help this is on prodigy
no link
Total cards signed:-
[tex]\\ \tt\longmapsto \dfrac{1}{4}+\dfrac{3}{5}[/tex]
[tex]\\ \tt\longmapsto \dfrac{5+12}{20}=\dfrac{17}{20}[/tex]
Cards left:-
[tex]\\ \tt\longmapsto 80-17/20(80)=80-68=12[/tex]
Find the x - and y -intercepts of the graph of the linear equation 3x+6y=24 .
The x -intercept is
.
The y -intercept is
.
Given :-
A linear equation in two variables , 3x + 6y = 24 .To Find :-
The x and y intercept of the graph .Solution :-
Given equation is ,
[tex] 3x + 6y = 24 [/tex]
To find the y intercept set x = 0 , we have ,
[tex] 3(0) +6y = 24 [/tex]
Simplify ,
[tex] 6y = 24[/tex]
Divide both sides by 6 ,
[tex] y = 4 [/tex]
Hence the y intercept is 4 .
[tex]\rule{200}2[/tex]
Now again to find x intercept , set y = 0
[tex] 3x +6(0)= 24[/tex]
Simplify ,
[tex] 3x = 24 [/tex]
Divide both sides by 3 ,
[tex] x = 8 [/tex]
Hence the x intercept is 8 .
x + 7y = 21
x + 4y = 15
Solve the simultaneous equations
Answer:
x = 7, y = 2
Explanation:
equations given:
x + 7y = 21
x + 4y = 15
make "x" the subject:
x + 7y = 21
x = 21 - 7y .........equation 1
x + 4y = 15
x = 15 - 4y .......equation 2
Solving both the equations simultaneously:
15 - 4y = 21 - 7y
-4y + 7y = 21 - 15
3y = 6
y = 6 ÷ 3
y = 2
If y is 2
Then x = 21 -7y;
x = 21 - 7(2)
x = 21 - 14
x = 7
x + 7y= 21
7 goes to RHS = X+ y = 21/7-3
x + 4y = 15
4 goes to RHS= x+y = 15/4 = 3.75
2+134 add both numbers and type it in the box when u get the answer
Your Assignment
Is x = 6 a solution to the equation 5(x - 3) = x + 13?
Simplify both sides.
Answer: It is not the solution, the solution for side one is 15, and the solution for side 2 is 18.
I need the answer ASAP
scale factor = 1.25
30 : 24 = 1.25
or
35 : 28 = 1.25
The scale factor of this parallelogram is 5/4
In this question, we need to find the scale factor;
What is Scale Factor?This is a factor to which a certain unit is multiplied or divided by. In this question, we have to find the scale factor first in order to know the missing side of the parallelogram.
Scale Factor[tex]\frac{30}{24} = \frac{5}{4}[/tex]
We have check for one side, let us find the other side and compare
[tex]\frac{35}{28}=\frac{5}{4}[/tex]
The scale factor of this parallelogram is 5/4
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Bella has less than 240 minutes to spend assembling furniture each day. Today, she has spent 35.5 minutes assembling a chair. Now she will assemble x desks, each of which takes 45.5 minutes. What is the maximum number of desks that Bella can assemble?
Using an inequality, it is found that the maximum number of desks that Bella can assemble is of 4.
What is the inequality that represents the situation?We consider that:
She has already spent 35.5 minutes assembling a chair.Then, she assembles x desks, each of which takes 45.5 minutes.She has less than 240 minutes to spend assembling furniture each day.Hence:
[tex]35.5 + 45.5x < 240[/tex]
Then, solving the inequality:
[tex]x < \frac{240 - 35.5}{45.5}[/tex]
[tex]x < 4.49[/tex]
Considering the number of desks has to be an integer, maximum number of desks that Bella can assemble is of 4.
More can be learned about inequalities at https://brainly.com/question/25235995
Tomas painted 5/8 of each tile with blue paint.
He painted 62 tiles. What is the total amount of
times that he painted blue?
Answer:
38.75
Step-by-step explanation:
62*5/8=38.75
Answer:
38 3/4
Step-by-step explanation:
5/8 of 62 = 5/8 x 62
= (5 x 62) ÷ 8
= 310 ÷ 8
= 38 3/4
PLEASE HELP MEEEEEEEEEE
Answer:
Step-by-step explanation:
1 pound of potato salad costs 2.96
0.75 pounds of potato salad costs x
1/0.75 = 2.96/x Cross multiply
x = 0.75 * 2.96
x = 2.22
0.75 pounds of potato salad costs 2.22 dollars.
3 4 5 6 7 8 9 10
TIME REMAINING
55:15
Suppose the temperature increases 8º to -7ºF. What was the starting temperature?
a.
15º
c.
-13º
b.
-20º
d.
-15º
Please select the best answer from the choices provided
A
B
C
D
Answer:
If it INCREASES then it is going closer towards zero since it is negative. So subtract 8 from (-7) and you get -15
so D is your answer
Find the difference.
(9ab-5a+4) - (9ab-2)
Answer:
-5
Step-by-step explanation:
Answer:
−5a+6
Step-by-step explanation:
hope this is right
zack has a bag containing 15 squares 4 circles 6 triangles and 6 hexagons. If he randomly choose one piece from the bag, what is the probability that he will grab a square or circle?
Answer:
19/31
Step-by-step explanation:
since there are 15 squares and 4 circles, both is 19
and since the total pieces 31
so the probability that he will grab a square or circle is 19/31
PLEASE HELP ME AND PLEASE DON'T PUT A COMMENT THAT DOESNT RELATE TO MY QUESTION BECAUSE IM RUNNING OUT OF POINT PEOPLE. THANK U SO MUCH I VERY MUCH APPRECIATE IT.
Answer:
Step-by-step explanation:
part a is -6
part b is -7.5
Answer:
Step-by-step explanation:
Part A:
warmer than => -
=> 7-13=-6
Part B:
Hours between 11 pm and 5 pm = 6.
6*(-1,25)=-7,5
Find the maturity value of a $473 note issued on October 4 at 8.5% for 190 days.
The maturity value on the bond is equal to $493.93
Data;
Face value = $473time = 190 daysrate = 8.5%Maturity ValueThis is calculated as the sum of face value and interest.
[tex]M.V = F.V + I[/tex]
Let's solve for the interest on the bond
[tex]I = PRT\\I = 473 * 0.085 * 190/365\\I = 20.93[/tex]
Let's add this up and solve
[tex]M.V = 473 + 20.93\\M.V = 493.93[/tex]
The maturity value on the bond is equal to $493.93
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Please help me And please dont say anything that does not relate to what I posted because people keep doing that to me and its annoying. THANK YOU!!
Answer:
The answer is in the picture :)
Step-by-step explanation:
The figure above shows that the shaded triangular region with a hypotenuse of 5 cm has been removed from a rectangular tile with dimensions x cm by y cm. Of the following which best approximates the area in square cm of the tile before the piece was removed
Check the picture below.
Mind you that we have four 30-60-90 triangles.
The area of given rectangle before the piece was removed is 65 cm² approximately.
What is area of rectangle?The area of a rectangle (A) is the product of its length 'a' and width or breadth 'b'. So, Area of Rectangle = (a × b) square units.
In Δ DEF,
∠EDF + ∠DEF + ∠DFE = 180° (angle sum property)
30° + 90° + ∠DFE = 180°
∠DFE = 60°
[tex]cos F = \frac{EF}{FD}(\frac{base}{hypotenuse}\\ \\ cos(60) = \frac{5}{FD}\\ \\FD = 5 * 2= 10[/tex]
[tex]cos D = \frac{ED}{FD}(\frac{base}{hypotenuse}\\ \\ cos(30) = \frac{ED}{10}\\ \\ED = \frac{\sqrt{3} }{2} * 10= 5\sqrt{3}[/tex]
In Δ AED,
∠AED + ∠EAD + ∠EDA = 180° ( angle sum property)
∠AED + 90° + 30°= 180°
∠AED = 60°
[tex]sinE = \frac{AD}{DE} (\frac{perpendicular}{hypotenuse}\\ \\sin(60) = \frac{AD}{5\sqrt{3} } \\\\AD= \frac{\sqrt{3} }{2}*5\sqrt{3} \\\\AD = 7.5[/tex]
In Δ DFC,
∠FDC + ∠DCF + ∠DFC = 180° (angle sum property)
30° + 90° + ∠DFC = 180°
∠DFC = 60°
[tex]sinF = \frac{DC}{DF} \\\\sin(60) = \frac{DC}{10}\\ \\\frac{\sqrt{3} }{2} *10 = DC\\\\DC = 5\sqrt{3}[/tex]
Area of rectangle = length * breadth = xy = AD * DC = [tex]7.5 * 5\sqrt{3} = 64.95[/tex]
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plssss ill give anything. 2 x 3[7 + (6/2)]=
Please give Brainliest!
Answer:
60
Step-by-step explanation:
Get that A.
Find the original price of a pair of shoes if the sale price is $60 after a 60% discount.
What is the original price?
Answer:
The original price was $100
Step-by-step explanation:
[tex]\frac{60 dollars}{x} = \frac{60 percent}{100 percent} \\x = \frac{100percent*60dollars}{60 percent}\\ x = 100 dollars[/tex]
10 Solve the quadratic equation algebraically. Give solution(s) in exact values. 4.5x2 + 72 = 0
Answer:
4i and -4i
Step-by-step explanation:
4.5x^2 = -72
x^2 = -16
x=-4i, 4i
What is the opposite of the opposite of 945?
Answer:
945.Step-by-step explanation:
The opposite of 945 is -945.
the opposite of -945 is 945.
The opposite of the opposite of 945 is 945.
What is the regular price for a bicycle is $210.19. The sale price is $43.48 less than the regular price. What is the sale price and show how do you know.
Answer:
$166.71
Step-by-step explanation:
210.19 - 43.48 = 166.71
a) When x = 6, what is the value of 4x?
10
A
12
B
24
С
46
D
None of these
E
m의
b) When x = 6, what is the value of 5x + x?
36
A
56
B.
62
С
566
D
None of these
E
c) When x = 6, what is the value of x??
3
A
6
B
12
С
36
D
None of these
E
Answer:
a-24, b-36, c-36
Step-by-step explanation:
a) 4(6)=24
b) 5(6)+6=36
c) (6)^2=36
Answer:
a) c -24
b) a - 36
c) d - 36
Step-by-step explanation:
a) When x = 6, what is the value of 4x?
4x
4(6) = 24
b) When x = 6, what is the value of 5x + x
5x + x
5(6) + 6
30 + 6
36
c) When x = 6, what is the value of x^2?
x^2
6^2
36
Hope this helps!
Each marble bag sold by Carmen's Marble Company contains 3 red marbles for every 2 purple marbles. If a bag has 12 purple marbles, how many red marbles does it contain?
Answer:
18
Step-by-step explanation:
Hello If You Have Please Help Thank You
Solve for x.
−7x−15<6
Answer:
x > -22/7
Step-by-step explanation:
Given inequality:
- 7x - 15 < 6
adding 15 to both sides:
==> -7x - 15 + 15 < 6 + 16
==> -7x < 22
dividing both sides by 7:
==> -x < 22/ 7
multiplying both sides by -1
(anytime you multiply the inequality by -1 you must flip the inequality sign– replace the "<" with ">")
==> x > -22/7
what is difactorization
Answer:
do u mean factorization?
if so, In math, factorization is when you break a number down into smaller numbers that, multiplied together, give you that original number. When you split a number into its factors or divisors, that's factorization. For example, factorization of the number 12 might look like 3 times 4.
Step-by-step explanation:
Hope this helps!
Answer: it an operation of resolving a quantity into factors; also : a product obtained by factorization
Step-by-step explanation: hope i help
two friends share this block of chesse equally what fraction dose each child get
Answer:
1/2 in fraction each kid will get 0.50 in decimal and 50% in percent
Step-by-step explanation: