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AnnZ [28]
3 years ago
9

A student and a professor each choose a number between 1 and 9 (1 and 9 are both possible choices). what is the probability that

the two choose the same number?
Mathematics
1 answer:
olchik [2.2K]3 years ago
7 0
I think the answer is 3/9
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Explain how you could estimate 16% of $118.56 to check if your answer is reasonable.
denis23 [38]
You could multiply 118.56 by .16 which is 19 dollars rounded and subtract 19 from 117.56 to get your answer
6 0
2 years ago
I stores having a sale on jellybeans in trail mix. For 2 pounds of jellybeans and 12 pounds of trail mix, the total cost is $23.
BabaBlast [244]

Answer: The cost of each pound of jellybean is $2.5

The cost for each pound of trail mix is $1.5

Step-by-step explanation:

Let the cost for each pound of jellybeans be x.

Let the cost of each pound of trail mix be y.

Based on the information given, we can form an equation which will be:

For 2 pounds of jellybeans and 12 pounds of trail mix, the total cost is $23. This will be:

2x + 12y = 23 ...... i

For 5 pounds of jellybeans and 3 pounds of trail mix, the total cost is $17. This will be:

5x + 3y = 17...... ii

2x + 12y = 23 ...... i

5x + 3y = 17...... ii

Multiply equation i by 5

Multiply equation ii by 2

10x + 60y = 115 ...... iii

10x + 6y = 34 ..... iv

Subtract iv from iii

54y = 81

y = 81/54

y = 1.5

The cost for each pound of trail mix is $1.5

From equation i

2x + 12y = 23

2x + 12(1.5) = 23

2x + 18 = 23

2x = 23 - 18

2x = 5

x = 5/2 = 2.5

The cost of each pound of jellybean is $2.5

5 0
2 years ago
2 m <br> 2m<br> 4m<br> 5m<br> What is the area
belka [17]

Answer:

80 m squared I think

4 0
3 years ago
Joyce paid $140 for an item at the store that was 20 percent of the original price. What was the original price?
Vesna [10]

Answer:

$175

Step-by-step explanation:

Equation for Price Reduction:

Original Price * Percent Remaining of Original = New Price

Plug in the given values into the equation:

Original Price * 0.8 = $140

Divide both sides by 0.8 to isolate the Original Price:

140/0.8 = 175

3 0
3 years ago
Read 2 more answers
Michele is making a kite based on the pattern below. About how much binding does Michele need to cover the edges of the kite?
REY [17]

Answer:

26.1in

Step-by-step explanation:


3 0
2 years ago
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