Answer:
50
Step-by-step explanation:
v = the original speed of the cruise
d = 225 km the distance passed
t = d/v = 225/v the total time of the travel
v*1.5 + (v + 10)(d/v - 1.5 - 0.5) = d (using the formula distance = speed*time)
1.5v + (v + 10)(225/v - 2) = 225
Look at the images to see the solved equation
Answer:
$55+$9x≥$199
You must work for at least 16 hours to be able to buy the bicycle.
Step-by-step explanation:
Let x represent the number of hours you need to work to buy the bicycle.
You already have $55.
⇒$55+ −−−−−≥ −−−−−
You also earn $9 per hour.
Algebraically, this can be written as 9x.
⇒$55+$9x≥ −−−−−
You need to earn at least $199 to buy the bicycle.
⇒$55+$9x≥$199
The ≥ sign is used because the left-hand side of the inequality must be "greater than or equal to" $199.
Let's find out how many hours you need to work to buy the bicycle.
Subtracting $55 from both sides of the inequality:
⇒$55−$55+9x≥$199−$55
⇒$9x≥$144
Dividing both sides by $9:
⇒$9x$9$=$144$9
∴x≥16
Therefore, you need to work at least 16 hours to afford the bicycle.
Answer:
8333 sheets of paper
Step-by-step explanation:
1000 grams is 1 kg
If there are 12 sheets of paper that weight 40g, then 40/12=3.33
1 sheet of paper=3.333g
If we need 2 1/2 kg of paper, 2 1/2 kg is exactly 2500g.
2500 x 3.333 = 8332.5 sheets of paper
Answer:
12.5
Step-by-step explanation:
(3+8)/2 = 5.5
5.5 + 7 = 12.5
Interpreting the graph and the situation, it is found that the values of d that can be included in the solution set are 1 and 4.
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- According to Benford's law, the probability of a number starting with digit is d is:
![P(d) = \log{(d + 1}} - \log{d}](https://tex.z-dn.net/?f=P%28d%29%20%3D%20%5Clog%7B%28d%20%2B%201%7D%7D%20-%20%5Clog%7Bd%7D)
- A number can start with 10 possible digits, ranging from 1 to 9, which are all integer digits.
- Thus, d can only assume integer digits.
- In the graph, the solution is d < 5.
- The integer options for values of d are 1 and 4.
- For the other options that are less than 5, they are not integers, so d cannot assume those values.
A similar problem is given at brainly.com/question/16764162