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Marrrta [24]
3 years ago
14

Two trains going in opposite directions leave at the same time. Train B travels 30 mph faster than train A. In 5 hours the train

s are 550 miles apart. Find the speed of each.
Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
3 0

Answer:

a

Step-by-step explanation:because

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4. Kevin has $24 to buy a gift for his cousin.
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Step-by-step explanation

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For each value of y, determine whether it is a solution to -2y+75-5.<br> Is it a solution?
ser-zykov [4K]

Answer:

• No

• Yes

• Yes

• No

Step-by-step explanation:

To determine if the 4 given values of y are solutions to the inequality, start by solving the inequality. Solving an inequality is just like that of an equation, except that the direction of the sign changes when the inequality is divided by a negative number.

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Subtract 7 on both sides:

-2y≤ -5 -7

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Divide by -2 on both sides:

y≥ 6

This means that the solution can be 6 or greater than 6.

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_______

Alternatively, we can also substitute each value of y into the inequality and check if the value is less than or equal to -5.

Here's an example to check if -10 is a solution.

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When y= -10,

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Step-by-step explanation:

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