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spin [16.1K]
3 years ago
10

A freight train is half a mile long. It approaches a tunnel traveling 60mi/hr. If the tunnel is 1 mile long, how long will it ta

ke the train, at that speed, to pass completely through?
Mathematics
2 answers:
Marysya12 [62]3 years ago
8 0

Answer:

60min

Step-by-step explanation:

MrRa [10]3 years ago
6 0

Answer:60

Step-by-step explanation:I seen the answer on bill bye the math guy

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What is the slope of the line whose equation is 5x+2y=10 ? −25negative 2 fifths 252 fifths −52negative 5 halves 52
garri49 [273]

Answer:

- 5/2

Step-by-step explanation:

it is a negative fraction the numbers in it is not negative numbers tho just to clear it up

4 0
3 years ago
Please help with this problem, I don't understand how to work it out.
balandron [24]
The way to work it is to make a table in Excel (or equivalent program) with the data of budget for every year.

This is how it should look:

<span><span><span>year      budget </span> <span>
     0     265.1 </span> <span>
     1     277.5 </span> <span>
     2     288.9 </span> <span>
     3     303.0
  </span> <span>    4     311.3
</span><span>     5    320.4
</span><span>     6    334.5
</span><span>     7    351.2
  </span> <span>    8    368.2 </span> <span>
     9    381.7

Select both columns and inser a scatter plot graph (menu, insert, graph, scatterplot).

Now change the design of the graph to include the model. In this case I got y = 12.724 x + 262.92

x represents the number of year after 1990 and y represents the budget.

Now you can use the model to calcualte the budget when you know the year and to calculate the year when you know the budget.

For year 2001, x = 11 and y = 12.724 (11) + 262. 92 = 402.88 (which is 402,880)

 This is the same year for which the budget exceeds 400,000. </span></span></span>
6 0
4 years ago
Expand the following - (-3x + y + z) square​
lbvjy [14]

Answer:

9x square + y squared + z squared

Step-by-step explanation:

Multiply all the numbers by '-'. Then square them all

3 0
3 years ago
Please help will give brainliest answer
Natasha_Volkova [10]

Answer:

B

Step-by-step explanation:

oh my goodness I don't know

7 0
3 years ago
Which expressions show how 6 • 45 can be rewritten using the distributive property? Choose all answers that are correct.
Karolina [17]
The answer is a and c
5 0
4 years ago
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