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Vinvika [58]
3 years ago
5

a toaster oven costing $130 offers an extended warranty for 25% of the purchase price if the local repair shop will fix a toaste

r oven for $8. How many times must the tiaster oven break in order for the warranty to oay foe itself
Mathematics
2 answers:
MArishka [77]3 years ago
6 0

Answer: It must take atleast 3 times to repairs for the warranty to be worth the cost.

Step-by-step explanation:

Since we have given that

Cost of a toaster oven = $130

Percentage of purchase price offers an extended warranty = 25%

so, it becomes,

\frac{25}{100}\times 130=\$32.5

Amount that the local repair shop fix a toaster oven = $8

So, number of times the toaster oven break in order for the warranty to oay foe itself is given by

\frac{32.5}{8}=4.0625

Hence, it must break atleast 5 times in order for the warranty.

myrzilka [38]3 years ago
5 0
Price covered by warranty:
130 x 0.25 = $32.5
Price per repair = $8
Number of repairs available:
32.5 / 8
= 4.0625
Thus, the toaster must break 4 times for the warranty to pay for itself.
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X/6=36/24 what value of x makes this proportion true
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Cross multiply or just multiply both sides by 24
24x/6=36
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4 0
3 years ago
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3. Find the value of a and b when<br>5+√6/5-√6 = a+b√6​
mr Goodwill [35]

The answer for A is,

a = 5 +  \frac{ \sqrt{6} }{ \sqrt{5} }  -  \sqrt{6}  -  \sqrt{6b}

And the answer for B is,

b = - 1 +  \frac{5 +  \frac{ \sqrt{6} }{ \sqrt{5} } - a  }{  \sqrt{6} }

hope it helps.

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4 0
3 years ago
Which of the following is a monomial?
Dmitrij [34]
"mono" means 1 or single. In algebra, a monomial is any number that is alone or by itself. For this question, among the choices, the monomial is the number 4. Therefore the answer to this question is letter B. 4.
5 0
3 years ago
Cell phone Plan A costs$70 per month and comes with a free$500 phone. Cell phone Plan Bcosts$50 per month but does not come with
timofeeve [1]

Answer:

25

Step-by-step explanation:

A = 70*M

B = 500 + 50*M

Costing the same means equal, so we have the equation:

70M = 500 + 50M

-50M           -50M

 

20M = 500

20M / 20 = 500 / 20

m- 25 months

5 0
2 years ago
4.20. According to a report released by the National Center for Health Statistics, 51% of U.S. households has only cell phones (
Sergeu [11.5K]

Answer:

The probability that the household has only cell phones and has high-speed Internet is 0.408

Step-by-step explanation:

Let A be the event that represents U.S. households has only cell phones

Let B be the event that represents U.S. households have high-speed Internet.

We are given that 51% of U.S. households has only cell phones

P(A)=0.51

We are given that 70% of the U.S. households have high-speed Internet.

P(B)=0.7

We are given that U.S. households having only cell phones, 80% have high-speed Internet. A U.S household is randomly selected.

P(B|A)=0.8

\frac{P(A\capB)}{P(A)}=0.8\\P(A\capB)=0.8 \times P(A)\\P(A\capB)=0.8 \times 0.51\\P(A\capB)=0.408

Hence the probability that the household has only cell phones and has high-speed Internet is 0.408

7 0
3 years ago
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