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malfutka [58]
3 years ago
13

Two trains leave stations 228 miles apart at the same time and travel toward each other. One train travels at 105 miles per hour

while the other travels at 85
miles per hour. How long will it take for the two trains to meet?
Do not do any rounding.
Mathematics
1 answer:
Anastaziya [24]3 years ago
3 0

Answer:

in 20 kilometers round they will meet

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Write an algebraic expression for the following: 17 more than a number.
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x+17

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7 increased by 5 times a number ?​
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If 112 people attend a concert and tickets for adults cost $2.25 while tickets for children cost $and total receipts for the con
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42 child and 70 adult

Step-by-step explanation:

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c = number of child tickets

a+c = 112

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Substitute this into the second equation

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Combine like terms

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What is the least common denominator (LCD) of 12 and 23?
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Answer: none of those, 276...?

Step-by-step explanation:

You need to know the least common denominator (LCD) of 12 and 23 if you want to add or subtract two fractions with 12 and 23 as denominators.

The least common denominator, also called lowest common denominator (LCD), of 12 and 23 is 276.

Here is a math problem example where you need to know the LCD of 12 and 23 to solve:

3/12 + 2/23 = ?

Step 1) Take the LCD and divide each denominator by it as follows:

276/12 = 23

276/23 = 12

Step 2) Multiply each nominator with the respective answers from Step 1:

3 x 23 = 69

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Step 3) Put it all together to solve the problem:

69/276 + 24/276 = 93/276

= 3/12 + 2/23 = 93/276

It's that easy! Once again, the lowest common denominator (LCD) of 12 and 23 is as follows:

276

7 0
3 years ago
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