6. You are the manufacturer of chain saws and are prepared to replace free all saws that fail while under guarantee. If you are willing to replace only 3% of the saws that fail, how long a guarantee should you offer? Assume that you know that the lives of the saws follow a normal distribution with an average of 12 years and a standard deviation of 2 years.
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Related Questions
163water bottles in 9 cases=
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joe's cell phone costs him $21 per month plus $3 for every 1GB of data downloaded. What is the limit to the number of GBs he can download to stay within his monthly budget of $30.
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21+3=24 24+3=27 27+3=30
joe can only use 3gb of data . bill is 21
21+9+30
1gb=3
3*9=9
3(3)+21=30
Solve the system of equations: 12x + 6y = 60 and 3y = -6x + 30
a) (10,0)
b) (0,10)
c) Infinite Solutions
d) No solutions
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12x + 6y = 60
3y = -6x + 30
Ok so we need to solve 12x + 6y = 60 for x
Let's start by adding -6y to both sides
12x + 6y - 6y = 60 - 6y
12x = -6y + 60
Since we are looking for x, we need to divide both sides by 12
12x/12 = (-6y + 60)/12
x = -1/2 y + 5
We are not done yet, now we need to substitute -1/2 y + 5 for x in 3y = -6x + 30
3y= -6x + 30
3y = -6(-1/2 y + 5)+ 30
3y = 3y
Finally subtracting 3y from both sides
3y - 3y = 3y - 3y
0 = 0
Thus, Infinite Solutions
the music for Alyssa's dance routine last exactly 4 min. when she dances her routine, she starts with her music and finishes 12 seconds before the music ends. what percent of the time the music is playing is Alyssa dancing.
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As an example, we have 123/463, which is around 0.266. Multiplying that by 100, we end up with around 26.6 percent as the percent 123 is of 463
Which equation demonstrates the distributive property? A) 20 + 36 = 56 B) 20 x 36 = 36 x 20 C) 20 + 36 = 4(5 + 9) Eliminate D) (5 + 9)4 = 4(5 + 9)
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answer
C) 20 + 36 = 4(5 + 9)
what is 1.18 repeating as a fraction
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How do u solve- if 3 onions way 0.75 pounds how much do 10 Onions weigh.
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.75/3
that will give u the weight of one onion
which is:
.25
now multiply .25 by 10 and this will give you the weight of 10 onions
.25(10)
2.5lbs
PLZZZ HELP. LOOK IN THE PICTURE BELOW TO ANSWER MY QUESTION.
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To add or subtract fractions, we need find a common denominator:
Simplify.
[tex]3/8-(-3/2)[/tex]
[tex]3/8+3/2[/tex]
Find the LCM.
[tex]3/8+12/8[/tex]
The Answer Is:
[tex]15/8[/tex]
Hope this helps.
-Benjamin
My number has 2 hundreds. The tens digit is 9 more than the ones digit
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Solve (−3) ⋅ 2.
−6
−5
5
6
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You can simply multiply -3 by 2 by thinking of adding adding -3 to itself twice
-3 + -3
-6 is your answer
Hope this helps!
A ticket agency charges 9.5% fee on all tickets sold .if a ticket cost 40$ what is the fee
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you have to multiply the 9.5% fee by $40 and you will get how much the fee will be
0.095x40=3.8
40+3.8=43.8
So it costs $43.80
Fanga ran 28 miles per in 4 hours She ran at a rate of how many miles per hour
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2/5 ab
What are the factors of the expression?
Drag all of the factors of the expression into the box.
please help me :D
the points are 50
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the answer is 2/5, a, b
5. At a local store you find the following prices listed: Tape 2 rolls for $1.28 Notepads 3 pads for .87 Highlighters 1 for 1.59 Pens 2 for 1.98 How much would you pay for one roll of tape, two note pads, two highlighters, and two pens? A. $5.72 B. $6.38 C. $4.50 D. $8.07
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$1.28/2 = $0.64
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To find the cost of two note pads, we first divide the given price by 3 because we want to know how much one note pad costs.
$0.87/3 = $0.29
Each note pad is 29 cents. Since we want to note pads, we double this amount.
$0.29*2 = $0.58
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One highlighter costs $1.59. We want two of them, so we double this amount.
$1.59*2 = $3.18
----------------
We want two boxes of ink catridges, and we are told that two boxes cost $1.98.
----------------
Let's total the amounts:
$0.64 + $0.58 + $3.18 + $1.98 = $6.38
We would pay $6.38 for these seven items.
Pizza World has a specialty cheese pizza that can be cut into 10 slices, and they have a specialty pepperoni pizza that can be cut into 16 slices. If Pizza World serves combos of one slice of cheese and one slice of pepperoni pizza with no slices left over, what is the smallest number of combos that Pizza World can prepare?
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The smallest number of combos that Pizza World can prepare with one slice of cheese and one slice of pepperoni pizza with no slices left over is 80.
The student is asking how many combos of one slice of cheese and one slice of pepperoni pizza Pizza World can prepare with no slices left over given that a cheese pizza has 10 slices and a pepperoni pizza 16 slices. This question is looking for the least common multiple (LCM) of two numbers, which is the smallest number that is a multiple of both numbers. To find the LCM of 10 and 16, we list the multiples of each number until we find a common multiple. The multiples of 10 are 10, 20, 30, 40, 50, 60, ... and the multiples of 16 are 16, 32, 48, 64, 80, .... The smallest common multiple of 10 and 16 is 80. Therefore, we can prepare 80 combos using 8 cheese pizzas (because 8 x 10 = 80) and 5 pepperoni pizzas (because 5 x 16 = 80).
Rebecca ran 12 1/4 miles in 2 1/2 hours. What was your average speed in miles per hour
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12.25/2.5 = 4.9
Her average speed was 4.9 miles per hour
Can someone help me pls ?
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10: 3x5=15 2x5=10 15-10=5
12: 56/7=8 42/7=6 8x6=48
Remember: PEMDAS
Parentheses (please)
Exponets (excuse)
Multiply (my)
Divide (dear)
Add (aunt)
Subtract (sally)
From left to right as if reading a book
Factor out the coefficient of the variable.
The expression 38d+34 factored is
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The highest common factor of 38 and 34 is 2. Dividing both coefficients by 2 gives us 19d and 17. Therefore, the factored expression of 38d + 34 is 2(19d + 17).
Explanation:Factoring out the coefficient of a variable in the expression 38d + 34 involves finding a number that divides both coefficients exactly. The highest common factor (HCF) of 38 and 34 is 2. So, we divide 38 and 34 by 2 to get 19d and 17 respectively.
Therefore, the expression, when factored out, becomes 2(19d + 17). This means that the expression 38d + 34 can thus be factored into 2 times the expression (19d + 17).
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Find the y-intercept of the line:
2x + 4y = 8
Question 5 options:
a) (2,4)
b) (0,2)
c) (4,0)
d) (4,2)
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Glad I could help!!!
A and b thank you on 92
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Not sure how you would go about b though.
Solve 5(y - 4) = 7(2y + 1)
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5y-20+20=14y+7+20
5y-14y=14y + 27 -14y
9y=27
Divide both by -9
Y=-3
determine if this triangle is acute, obtuse, right, or impossible
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The length of a rectangle is 8 more than the width. The area is 825 square inches. Find the length and width of the rectangle
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Let width be x then
Length is x+8
Therefore area which is given by L*W will be
Area=x*(x=8)
But area =825 sq inches
x*(x+8)=825
x^2+8x-825=0
we use quadratic formula to solve this
and get our x=25 therefore
our width is 25
and length is 33
Amber has a 4/5 pound bag of colored sand, she uses 1/2 of the bag for an art protect. How much sand does she uses for the protect?
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an item is purchased for a wholesale price of $48 and will be sold at a 55 percent markup. which expression should be used to find the amount of the markup
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Answer:
$48(0.55)
Step-by-step explanation:
the sum of two consecutive even integers is -298. What are the integers?
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Answer: -148, -150
n + n + 2 = -298
2n = -300
n = -150
(1-x)y"-4xy'+5y=cosx
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what is the value of w in the equation w-5.5=-3.4
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w=2.1
Hope this helps!
w-5.5 = -3.4
add 5.5 to each side
w = -3.4 + 5.5 = 5.5-3.4 = 2.1
w = 2.1
a gym membership costs $30 to join and $ 12 each month. write and use an algebraic expression to find the cost of the gym membership fo 6 months
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G = 12x+30
G = 12(6)+30
G = 72+30
G = 102
30+12(6)
30+ 72
102
The cost of the gym membership for 6 months is $102.
Hope this helps!
Read the proposition and the implication shown below. "If the lights are off, there is no one inside." Which statement is a contrapositive to the proposition and logically equivalent to it?
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Statement: If A, then B
Contrapositive: If not B, then not A.
In this case, the statement is:
"If the lights are off, there is no one inside."
Contrapositive:
If there is someone inside, the lights are on.
The contrapositive of the proposition 'If the lights are off, then there is no one inside' is 'If there is someone inside, then the lights are not off'. Contrapositives are formed by negating and interchanging the hypothesis and conclusion of a conditional statement, and is a key concept in mathematics.
Explanation:In logic, the contrapositive of a conditional statement is formed by negating both the hypothesis and the conclusion, and then interchanging the resulting negations. So, the contrapositive of the given proposition 'If the lights are off, then there is no one inside' would be 'If there is someone inside, then the lights are not off'.
This implies that, in the context of this statement, if we know that there is someone inside, we can deduce that the lights must not be off as per the contrapositive. Thus, contrapositives are a helpful way to understand conditional statements from another perspective, and are an integral concept in logic and mathematics.
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