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Mandarinka [93]
3 years ago
11

7-2 Practice Questions

Mathematics
1 answer:
dusya [7]3 years ago
3 0

Answer:

24

Step-by-step explanation:

There are 36 possible outcomes when rolling 2 dice. The sums range from 2 to 12. There are 4 ways of rolling a 9: 3, 6; 4, 5; 5, 4; 6, 3.

p(sum of 9) = 4/36 = 1/9

1/9 of the rolls are expected to have a sum of 9.

1/9 * 216 = 24

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The following invoice contains the notation "2/10, n/30." Determine the price of the order. An invoice dated December 27 lists a
irinina [24]

Answer:

The problem statement tells you the order price is $885.00.

The balance to be paid on 5 Jan is 2% less than that, $867.30.

Step-by-step explanation:

The notation "2/10, n/30" means a discount of 2% is applied if the invoice is paid within 10 days, but the net amount is due within 30 days in any event. 10 days after 27 Dec is 6 Jan, so a payment on the 5th of January is subject to the 2% discount.

After 2% is subtracted from 100% of the invoice amount, 98% percent remains. The payment need only be ...

... 0.98 × $885.00 = $867.30

<em>_____</em>

<em>Comment on problem wording</em>

Your problem statement says, "Determine the price of the order." It also says, "... an order priced at $885.00." The determination asked for is found in the problem statement: $885.00. If that is the required answer, it would place this problem in the "trick question" category, as the notation and payment date information are clearly unneeded.

We suspect the problem really wants you to determine the amount to be paid for the order when payment is made on January 5. Unfortunately, that is not what is asked for.

4 0
3 years ago
What’s the solution to the system of equations
Sonbull [250]

Answer:

thw answer to this system of equations is 3, -2

7 0
3 years ago
Read 2 more answers
Estimate the area of a living room that measures 10.6 ft x 9.28 ft
Mariana [72]
We have to multiply those measurements to get the area of a living room
10.6 ft * 9.28 ft
98.368 ft^2
5 0
3 years ago
Read 2 more answers
What is the reciprocal for 2 2/5​
wariber [46]

Answer:

5/12

Step-by-step explanation:

2 2/5 = 12/5 so its reciprocal is 5/12

Reciprocals are fractions that are basically "flipped". You flip the denominator to the numerator and vice versa.

5 0
3 years ago
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In 2015, nearly seven out of every ten autos sold in a country was a crossover utility vehicle (CUV). If an auto dealership sold
Over [174]

Answer:

2,800 CUV cars were sold

Step-by-step explanation:

7 out of 10 are CUV

Total sold are 4,000

Set them equal to each other:

\frac{7}{10}  = \frac{x}{4000}

Cross multiply:

7 * 4,000 = 10*x

28,000=10x

Solve for x:

\frac{10x}{10} =\frac{28,000}{10}

x = 2,800

6 0
4 years ago
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