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r-ruslan [8.4K]
3 years ago
14

A train traveled 450 kilometers (450 km) east from its starting point for 9 hours (9 h). What was the average speed of the train

during its trip?
Mathematics
1 answer:
elixir [45]3 years ago
4 0

Answer:

You need to find the average for your numbers

Step-by-step explanation:

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Need help immediately
marin [14]

Answer:

Step-by-step explanation:

If A, B, and C are in the ratio of 2:3:5 and they are each getting some amount of money in that ratio, then to find the total amount of money they split is found in Ax + Bx + Cx and we need to solve for x. What we are told is that the smallest share = 210 and obviously A is the smallest share. Therefore,

2x = 210 and x = 105.

The total sum = 210 + 3(105) + 5(105) so

Total sum = 210 + 315 + 525

Total sum = 1050 and

C's share is 525 and

B's share is 315

6 0
3 years ago
What are the zeros of the function f(x) = x2 + 8x + 4, expressed in simplest radical form?
klio [65]

Answer:

x = -4 ± 2√3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
For males in a certain town, the systolic blood pressure is normally distributed with a
GREYUIT [131]

Answer:

99.7%

Step-by-step explanation:

Note that 92 and 128 are 3 standard deviations from the mean

The emperical rule or the  68–95–99.7 rule states that 68% of outcomes are wihtin 1 standard deviation from the mean

95% of outcomes are within 2 standard deviations from the mean

99.7% of outcomes are within 3 standard devations from the mean

This is 3 standard deviations so the answer is 99.7

7 0
3 years ago
Write the numbers in order from least to greatest. -7, -6.5, -6.2, 0, -4.5
algol13

Answer: -7, -6.5, -6.2, -4.5, 0

I hope this helps, stay safe, and have a great rest of your day. :)

7 0
3 years ago
Read 2 more answers
I need help with this question
AlexFokin [52]
A
Find the two intersections of the lines. The value of x of the intersections will satisfy the system of equations.
Brainliest pls!
3 0
2 years ago
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