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Ugo [173]
1 year ago
7

The grade of a hill is its steepness represented as a percent. Jin tracks his walking speed up different hills. What does the ra

te of change, or slope,
represent in this situation?
Mathematics
1 answer:
netineya [11]1 year ago
7 0

Answer: The rate represents a decrease in speed for each 1% grade increases.

Step-by-step explanation:

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A ferry will safely accommodate 68 tons of passenger cars. Assume that the mean weight of a passenger car is 1.8 tons with stand
nika2105 [10]

Answer:

P (Z

Step-by-step explanation:

We want the probability that the 35 cars are loaded onto the ferry. Therefore:

Since  

μ=1.8  and  σ=0.5  we have:

P(X<35 )=P ( X−μ<35−1.8 )=P((X−μ)/σ<(35−1.8)/0.5)

Since  

(x−μ)/σ=Z and  

(35-1.8)/0.5=66.4

we have:

P (X

Use the standard normal table to conclude that:

P (Z

7 0
2 years ago
Read 2 more answers
A school cafeteria sells milk at 25 cents per carton and salads at 45 cents each. one week the total sales for these items were
denis-greek [22]

solution:

Lets start with the most amount that could have been sold.......using guess and check, we can figure out that 290 salads could have been sold, while 8 cartons of milk would have been sold.

The least amount of salads that could have been sold were none.

so,

you have  0<s<290

at least none were sold, and at most 290 were sold

but I do believe you are missing part of the question


4 0
2 years ago
Solve for x 3x−91&gt;−87 OR 21x−17&gt;25
klasskru [66]

Answer:

  x > 4/3

Step-by-step explanation:

The first inequality can be solved this way ...

  3x -91 > -87

  3x > 4 . . . . . . . add 91

  x > 4/3 . . . . . . divide by 3

__

The second inequality has solution ...

  21x -17 > 25

  21x > 42 . . . . . . add 17

  x > 2 . . . . . . . . . divide by 21

__

The solution set is the union of these overlapping solutions, so will be equal to the first solution:

  x > 4/3

5 0
2 years ago
Read 2 more answers
Sheleah and her family are planning a trip from Los Angeles, California to Melbourne, Australia. While booking her family's plan
Shkiper50 [21]

Answer:

Step-by-step explanation:

According to the graph, the amount of gasoline after 16 hours is 0 gallons. ⇒ Jet has to land to refuel after 15 hours of flying.

3 0
2 years ago
If p and q are nonzero integers, which pair of points must lie in the same quadrant?
Tems11 [23]
Hello there.
<span>
If p and q are nonzero integers, which pair of points must lie in the same quadrant?
</span>
<span>B. (p, q) and (2p, 2q)
</span>
8 0
2 years ago
Read 2 more answers
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