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kotykmax [81]
4 years ago
13

1 train leaves from NYC heading towards LA at 100 mph. three hours later, a train leaves from LA heading towards NYC at 200 MPH.

Assume there's exactly 2000 miles between LA and NYC. When they meet, which train is closer to NYC?
Mathematics
1 answer:
Yuri [45]4 years ago
7 0
Both will be at same<span> distance from NYC when they meet.

Hope this helps.

</span>
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Please help me ill give brainly to best answer
11111nata11111 [884]

Assuming they work until their cost become the same, obviously.

The difference between the first charge of painter A and painter B = 376 - 280 = 96.

The hourly cost difference between painter B and painter A = 15 - 12 = 3.

So, painter A in the first hour has 96 more dollars than painter B, and as every hour pass, the difference goes down by 3 (as painter B gets 3 more dollars every hour)

Therefore, it would take 96 : 3 = 32 hours for the cost to be the same

Recheck : After 32 hours, painter A has 376 + 32 x 12 = 760 (dollars)
painter B has : 280 + 15 x 32 = 760 (dollars)

5 0
1 year ago
А<br> is 35% of<br> B.<br> then<br> B<br> А<br> is 65:35.
Aleonysh [2.5K]

Find 35% of 65, since A= 35 and B= 65.  

35%=.35  

Multiply that by 65, for the percentage.

65*.35= 22.75

So, 35% of 65= 22.75

22.75 is not equal to 35.

This statement is false.

8 0
3 years ago
Read 2 more answers
Find the measure indicated in each parallelogram
Alex_Xolod [135]
To help u better understand it find the relationship whether its same side interior/exterior or alternate interior/exterior angles.
1) T is congruent to R so... T=79
2)180-102=68 so ...G=68
3)180-145=35 so ....E=35
4)180-139=41 so....L=41
7 0
3 years ago
Convert the decimal 0.92¯¯¯ to a fraction.
topjm [15]

Answer:

23/25

Step-by-step explanation:

hope this helped.

8 0
3 years ago
Prove algebraically that (m + 2)2 – m 2 – 12 is always a multiple of 4
Julli [10]

Answer:

(m + 2)^{2} - m^{2}  - 12 = 4(m - 2)

Step-by-step explanation:

Step 1:

Write the expression

(m+2)^{2} - m^{2}  - 12

Step 2: Expand (m + 2)^{2}

(m+2)^{2} - m^{2} - 12\\(m+2)(m+2) - m^{2}  - 12\\m^{2} + 2m + 2m + 4 - m^{2}  - 12

Step 3: Collect similar terms

m^{2}  - m^{2}  + 4m + 4 - 12\\4m - 8

Step 4: Factor 4 out of the expression to prove that the expression is a multiple of 4.

Therefore\\4m - 8 = 4(m - 2)\\Hence,\\(m+2)^{2}  - m^{2} -  12 is a multiply of 4 because the expression is equal to 4(m-2)

3 0
3 years ago
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