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Effectus [21]
3 years ago
8

Sammie pays $30 for a bag that she buys at a discount of 50%. What is the price of the bag without the discount?

Mathematics
2 answers:
Olegator [25]3 years ago
8 0
It'd be $60, 50% is half so you double
djyliett [7]3 years ago
5 0
If paid $30 for a bag with the discount you would just time it by 2 (reverse what you did) And you would get 60. Sammie's bag would have been $60 without the discount. To check this you can do 60 divided by 2 (2 is half which is equivalent to 50%, which is half of 100) and you would get 30. I hope this helps/makes sense! 
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Although television HDTV converters are tested before they are placed in the installer's truck, the installer knows that 20 perc
Vsevolod [243]

Answer:

HDTV Converters

a. The probability that the driver will have enough working converters = 80% (100 - 20%).

b. The driver should load 10 boxes (or specifically 9.5 boxes) to ensure a 95% probability of having enough working converters.

Step-by-step explanation:

a) Data and Calculations:

Probability of HDTV converters known to not work property = 20%

This implies that 80% (100 - 20%) will work properly.

Number of converters to install today in an apartment building = 8

Number of converters placed in the truck = 10

b) The probability that the driver will have enough working converters = the probability of having properly working converters, which is 80%.  To ensure a 95 percent probability of having enough working converters, out of 10 converters, the number of boxes to load on the truck is 9.5 (10 * 95%) boxes.  Since there are no half boxes, it means that 10 boxes must be loaded, approximated to the nearest convenient number.

5 0
3 years ago
Mercury, Venus, and Earth are the three planets closest to the Sun. Would their combined distance in km from the Sun be greater
suter [353]

Answer:

Step-by-step explanation:

If you added all the fallowing planets mercury Venus and earth together itwould be greater than the distance from Neptune to the sun neptune is 2.759 billion miles away from the sun and the three others combined are 196.18 million.

I hope this helps

3 0
3 years ago
The product of 9 and the sum of a number z and 4
rodikova [14]
The GCF would equal to one but is that what u want
4 0
3 years ago
The concession stand at football games sells pizza and drinks. You buy 4 drink and 6 slices of pizza for $6.70. Your friend buys
AfilCa [17]

Answer:

  • drinks: $0.55
  • pizza slices: $0.75

Step-by-step explanation:

Let d represent the cost of a drink, and p represent the cost of a pizza slice. Then the two purchases can be represented by ...

  • 4d +6p = 6.70
  • 3d +4p = 4.65

To solve these equations by elimination, choose a variable to eliminate and look at the coefficients of that in the two equations. If we choose to eliminate p, we see the coefficients of p are 6 and 4. The least common multiple of these numbers is 12. We can multiply the first equation by -2 and the second equation by +3 and the resulting coefficients of p will be -12 and +12. Adding the results of these multiplications will make the p terms add to zero.

  -2(4d +6p) +3(3d +4p) = -2(6.70) +3(4.65)

  -8d -12p +9d +12p = -13.40 +13.95 . . . . . . . . . eliminate parentheses

  d = 0.55 . . . . . . . . . collect terms

Now, we can substitute this value into either equation to find the value of p. Using the first equation, we get ...

  4(0.55) +6p = 6.70

  6p = 4.50 . . . . . . . . . subtract 2.20

  p = 0.75 . . . . . . . . . . divide by 6

The cost of a drink is $0.55; the cost of a slice of pizza is $0.75.

3 0
3 years ago
Read 2 more answers
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Vlada [557]
4 year college Tuition: $28,800.00
Money Saved since Sarah was born: $21,600.00

So, no, her family did not save enough for college.
5 0
2 years ago
Read 2 more answers
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