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scoundrel [369]
3 years ago
13

The temperature outside dropped 13°F in seven hours. The final temperature was -2°f there tonight what was the starting temperat

ure
Mathematics
2 answers:
aleksley [76]3 years ago
8 0
15 degrees Fahrenheit was the starting temperature!
Juli2301 [7.4K]3 years ago
6 0
13+-2
 =-15 you ad the bigger number an subtract the negative number

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A 7-pack of plastic rings costs $2.52. What is the unit price? per ring?​
VikaD [51]

Answer:

7 rings = $2.52

then 1 ring will cost = 1/7×2.52

= 0.36

Therefore 1 ring will cost $0.36.

4 0
3 years ago
What is the slope of the graph of the equation 4x - 6y=2?<br>A.-4<br>B.-1<br>C.2/3<br>D.3/2​
yarga [219]
It is C 2/3 because 4x=2 and 6y=3
8 0
3 years ago
Read 2 more answers
Help please :( points !
mars1129 [50]
Answer: 2/5

Explanation: 10+8+12 = 30 12/30 = .4 .4 = 2/5
4 0
3 years ago
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You roll a six-sided die. Find the probability of each of the following scenarios
romanna [79]

Answer:

a) 1/2

b) 5/6

c) 2/3

Step-by-step explanation:

a)

Rolling a number greater than 3 means you can roll a 4, 5, or 6, which contains rolling a 6. So, the probability is (1+1+1)/6=3/6=\boxed{1/2}

b)

Rolling a number less than 5 means you can roll a 1, 2, 3, or 4, but because you could also roll an even number, so you could also roll a 6.

So, the probability is (1+1+1+1+1)/6=\boxed{5/6}

c)

Rolling a 4 or an odd number means you can roll a 1, 3, 5, or 4. So, the probability is (1+1+1+1)/6=4/6=\boxed{2/3}

6 0
2 years ago
The life of light bulbs is distributed normally. the standard deviation of the lifetime is 25 hours and the mean lifetime of a b
Dominik [7]
The probability is 0.8997.

We will use a z-score to answer this question.  z-scores are given by the formula
z=\frac{X-\mu}{\sigma}

With our information, we have
z=\frac{622-590}{25}=\frac{32}{25}=1.28

Looking this up in a z-table (http://www.z-table.com) we see that the area to the left of this (everything less than, up to this value) is 0.8997.
4 0
3 years ago
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