Answer:
heyy
Step-by-step explanation:
Answer:
yea i will
Step-by-step explanation:
40 is 20% of what number? -------------------------------------------------------------------------------------------------------------------------------------------
60 is 25% of what number? ------------------------------------------------------------------------------------------------------------------------------------------
73 is 20% of what number? ------------------------------------------------------------------------------------------------------------------------------------------
10 is 5% of what number? --------------------------------------------------------------------------------------------------------------------------------------------
12 is 24% of what number? ------------------------------------------------------------------------------------------------------------------------------------------
Mallorie has $5 in her wallet. If this is 10% of her monthly allowance, what is her monthly allowance? -----------------------------------------
Jacob has $10 in his wallet. If this is 40% of his weekly allowance, what is his weekly allowance? ----------------------------------------------
13 is 26% of what number? ------------------------------------------------------------------------------------------------------------------------------------------
120 is 30% of what number? ----------------------------------------------------------------------------------------------------------------------------------------
In the first year, a new car can lose 20% of its value. If a car lost $4,200 of value in the first year, how much did the car originally cost?
40 is 20% of what number? 200
60 is 25% of what number? 240
73 is 20% of what number?365
10 is 5% of what number? 200
12 is 24% of what number? 50
Mallorie has $5 in her wallet. If this is 10% of her monthly allowance, what is her monthly allowance? $50
Jacob has $10 in his wallet. If this is 40% of his weekly allowance, what is his weekly allowance? $25
13 is 26% of what number? 50
120 is 30% of what number? 400
In the first year, a new car can lose 20% of its value. If a car lost $4,200 of value in the first year, how much did the car originally cost? $21000
Product codes of 2, 3, 4, 5, or 6 letters are equally likely. What is the mean and variance of the number of letters in the codes
Answer:
[tex]Mean = 4[/tex]
[tex]Var = \frac{25}{12}[/tex]
Step-by-step explanation:
Given
Codes: 2,3,4,5,6
Required
Determine the Mean and Variance
Equally likely implies that the data follows a uniform distribution.
So,
[tex]Mean = \frac{a+b}{2}[/tex]
Where
[tex]a = Lower\ Bound = 2[/tex]
[tex]b = Upper\ Bound = 6[/tex]
[tex]Mean = \frac{a+b}{2}[/tex]
[tex]Mean = \frac{2 + 6}{2}[/tex]
[tex]Mean = \frac{8}{2}[/tex]
[tex]Mean = 4[/tex]
Variance of a uniform distribution is calculated as thus;
[tex]Var = \frac{(b-a+1)^2}{12}[/tex]
Substitute values for a and b
[tex]Var = \frac{(6-2+1)^2}{12}[/tex]
[tex]Var = \frac{5^2}{12}[/tex]
[tex]Var = \frac{25}{12}[/tex]
HELPPP, i did it but i’m not sure if it’s right thank uu
You have the correct sequence of reasons
Here's what the full step by step picture looks like
3.25(1.25x + 0.5) = 10.5 ................ given
4.0625x + 1.625 = 10.5 ................ distributive property
4.0625x = 8.875 ................ subtraction property of equality
x = 2.18461538461539 ....... division property of equality
---------------------------
Notes:
The decimal value of x is approximate. Round it however you need.In the third step, we subtracted 1.625 from both sidesIn the fourth step, we divide both sides by 4.0625Answer:
I am pretty sure that is right
Step-by-step explanation:
[tex]3.25(1.25+0.5) = 10.5[/tex] is given
Then you distribute the [tex]3.25\\[/tex] to the [tex]1.25x[/tex] and the [tex]0.5[/tex].
[tex]3.25(1.25x)=4.06x[/tex]
[tex]3.25(0.5)=1.6[/tex]
So the new equation would be [tex]4.06x + 1.6= 10.5[/tex]
Then you would subtract [tex]1.6[/tex] from each side to get [tex]4.06x=8.9[/tex]
Finally you would divide each side by [tex]4.06[/tex] to get [tex]x= 1.93[/tex].
i need help with this review
Answer:
What do you need help with?
Step-by-step explanation:
it has an undefined slope and passes through (-2,5) write in y=mx+b
Hello do you still need help or did you figure it out?
Sarah wants to print copies of her artwork. At the local print shop, it costs her $1 to make 5 copies and $5 to make 25 copies. Which equation represents this direct variation?
Please help!!
Answer:
i wanna say B
Step-by-step explanation:
Answer: y = 1/5x
Step-by-step explanation:
Those numbers both equal 1/5
3. What is the area of the polygon?
Answer:
El área o superficie de un polígono es igual al producto del perímetro por la apotema dividido por dos. El perímetro es la suma de todos los lados. ... La apotema es el segmento que une el centro del polígono con el punto medio de un lado.
The shorter diagonal of a rhombus measures 18cm. The side of the rhombus measures 41cm. Find the length of the longer diagonal.
Answer:
80 cm
Step-by-step explanation:
BO² = AB² - AO²
BO² = 41² - 9² = 1,600 = 40²
BD = 2× BO = 80 cm
Someone please help!
Answer:
The answer is 3
Step-by-step explanation:
Jason wanted to save his earnings for the newest version of iPad. He already owed his mother $3.00. If he earned $5.00 per week and saved it all, the equation model for this situation would be f(x) = 5x – 3, where f(x) represents total amount saved, and x represents the number of weeks Jason has worked and saved his earnings. Which of the following statements represents the effects of the 5 and 3 on the graph of the linear parent function, f(x) = x?
A. The 5 decreases the rate of change causing the line to be less steep, and the 3 shifts the line down making the y-intercept (0, –3).
B. The 5 increases the rate of change causing the line to be steeper, and the 3 shifts the line up making the y-intercept (0, 3).
C. The 5 increases the rate of change causing the line to be steeper, and the 3 shifts the line down making the y-intercept (0, –3).
D. The 5 decreases the rate of change causing the line to be less steep, and the 3 shifts the line up making the y-intercept (0, 3).
Answer:
C. The 5 increases the rate of change causing the line to be steeper, and the 3 shifts the line down making the y-intercept (0, –3).
Step-by-step explanation:
Because he already starts of negative bc he owes $3, and then he gains$5 every week.
Please answer, I have asked this question several times and I cannot get an answer. Will choose brainliest. Plz and thx need help with number 1.
Answer:
4 /5
Step-by-step explanation:
what is 3/4 to the power of 2
Answer:
9/16
Step-by-step explanation:
Suppose that a fifth grade class has decided to build a two-story purple Martin bird hotel
Answer:
Well that would be great for the fifth grade class
Step-by-step explanation:
Answer:
Lol that would be cool
Step-by-step explanation:
A 100-inch pipe is cut into two pieces. One piece is three times the length of the other. Find the length of the shorter piece.
How do you factor an expression
ly.
8 - 2x4
Factor completely
Answer:A2 - b 2=(a + b) ( a - b) where a =2 and b =x2.
2(2 + x2) ( 2 - x2)
Step-by-step explanation:
Since both terms are perfect squares, factor using the difference of squares formula,
Shortly after creating a car washing business, you made $65 washing ten
cars. Then after fifteen cars, you made $115. Build a model. Write an
explanation for the slope. Write an explanation for the y-intercept. How
many cars have you washed if you have made $255?
Answer:
A) For the slope;
Rate of change in profit per change in number of cars washed = 10
B) when he had not washed any car, he was in debt of of $35
C) When he made $255, he had washed 29 cars
Step-by-step explanation:
Slope intercept equation of a line is;
y = mx + c
you made $65 washing ten
cars. Thus, x = 10 and y = 65
So, 65 = 10m + c - - - - (eq 1)
Then after fifteen cars, you made $115.
Thus, x = 15 and y = 115
So; 115 = 15m + c - - - - (eq 2)
Subtract equation 1 from eq(2) to get;
115 - 65 = 15m - 10m + c - c
50 = 5m
m = 50/5
m = 10
Putting 10 for m in eq 1 gives;
65 = 10(10) + c
65 = 100 + c
c = 65 - 100
c = -35
A) Since the slope is m = 10 and slope is m = Δy/Δx, it means that;
Rate of change in profit per change in number of cars washed = 10
B) c = -35 is the y-intercept.
This means when x = 0, y = - 35.
It implies that when he had not washed any car, he was in debt of of $35
C) since we have the slope and intercept, equation is;
y = 10x - 35
If he has made $255,then we have;
255 = 10x - 35
255 + 35 = 10x
290 = 10x
x = 290/10
x = 29 cars washed.
2) Find the area without graphing. A(25, 30), B (-15, 30), C(-15, 22), D(25, 22) What is this shape?
Answer:
The answer to the question is a rectangle.
Step-by-step explanation:
Which is equivalent to 4(x - 1)
Answer:
5
Step-by-step example
It is 5 because 5-1 get you 4 which can be equivalent to 4
thare are 7/8 kilograms of salt in the kitchen . mrs. lopez used 7/15 of the salt when she was preparing dinner. how much salt did she use?
Answer: 49/120kg
Step-by-step explanation:
7/8•7/15 = 49/120
PLZ HURRY IT'S URGENT!!!
Question 1
Solve using substitution.
2x+y=10
x=5
options:
(5, 10)
(5, 0)
(10, 5)
(0, 5)
Question 2
Solve using substitution.
y=−3x+4
y=3x−2
options:
(-1, 1)
(1, 1)
(1, -1)
(-1, -1)
Question 3
Solve using substitution.
y=x−6
y=7x
options:
(-1, -7)
(-7, -1)
(-7, 1)
(1, -7)
Question 4
Solve using substitution.
y=−5
5x+4y=−20
options:
(-5, 0)
(0, -5)
(0, 5)
(5, 0)
Question 5
Solve.
9x+8y=48
x−2y=14
options:
(-3, 8)
(3, -8)
(-8, 3)
(8, -3)
Answer:
Question 1: (5,0) Question 2: (1,1) Question 3: (-1, -7) Question 4: (0, 5) Question 5: (8, -3)
Step-by-step explanation:
Drop a comment if you have any questions about my working.
Help quick pleaseeee
1.8 + 3.5y + 0.9 + 9 = 16.2
Answer:
Its about 1.3
Step-by-step explanation:
What’s the answer ? 54 = 5 + 7s
Answer:
s=7
Step-by-step explanation:
Answer:
y is 7
Step-by-step explanation:
First, we can isolate 7s, so we minus 5 from each side, and get 49=7y. So, y is 7.
Does each relation represent a function? Choose Yes or No.
Answer:
yes
yes
yes
no
Step-by-step explanation:
Answer:
yes
yes
no
yes
Step-by-step explanation:
Help me pleaseeeeeeeeeeeeee
Write the equation of the line in slope-intercept form that has: slope: -1 point: (2, -3)
Answer:
The answer is y= -x-1
Step-by-step explanation:
y-y=m(x-x1)
y-(-3)=-1(x-2)
y+3=-1x+2
-3 -3
y=-x-1
HELPPPPPPPPPPP NEEDED PLEASEEEEEEEEEE
Answer:
It is not a function.
Step-by-step explanation:
Using the verticals line test you can tell the relation is not a function because two number are the same in the x-value. This can be easily seen with the two points on the same vertical line.
Jill estimated she would spend $50.00 a month on clothing. However, at the end of the year she discovered she actually spent $711.00 on clothing that year. What was her forecast error for that budget item?Hint 12 months in a year
Guests at a Beaumont hotel stay for an average of 9 days with a standard deviation of 2.4 days. Assume that the length of stay is normally distributed. Assume that we select randomly 1000 guests. How many of those guests can be expected to stay between 7 and 14 days
Answer:
778
Step-by-step explanation:
We have the length of stay as X
X~N (9,(2.4))
The sample is given as n = 1000
P(7<x<14) is what we are trying to get
P(7-9/2.4 < x-9/2.4 < 14-9/2.4)
= P(-0.83<z<2.08)
P(z<2.08)-p(z<-0.83)
When we go to the z table,
0.981-0.0203
= 0.778
0.778x1000
= 778
So in conclusion, 778 of these guests can be expected to stay between 7 and 14 days.
