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Elan Coil [88]
3 years ago
7

You collect 30 pieces of Halloween candy and you give x pieces to

Mathematics
1 answer:
Svetlanka [38]3 years ago
5 0

Answer:

You gave away 15 pieces of candy.

Step-by-step explanation:

Let x represent the number of pieces you give to friends.

Your equation:

30 - x

Your neighbor's equation:

45 - 2x

Set them equal to each other.

30 - x = 45 - 2x

Evaluate.

30 - x = 45 - 2x

-15 = -x

15 = x

hope this helps :)

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If 9×4 =36 does 9×4+5=36+6
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Answer:

No.

Explanation:

If you did the order of operations, you would get:

41 = 42.

Which isn’t true because they’re both a number away from being equal to each other.
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Which percent is equivalent to 1 9/12
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Answer:

175%

Step-by-step explanation:

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5. What is an equation of the line in slope-intercept form?
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Answer:

y = (2/7)x -12

Step-by-step explanation:

y = mx + b is the standard form of an equation of a straight line in which m is the slope and b is the y-intercept (the value of y when x is zero)..

<u>m</u>=(2/7) and <u>b</u> = -12

y =   <u>m</u>x  + <u>b</u>

y = (<u>2/7</u>)x <u>-12</u>

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Find the measurement of angle JGH
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3 years ago
Read 2 more answers
A train leaves Philadelphia at 2:00 PM. A second train leaves the same city in the same direction at 4:00 PM. The second train t
polet [3.4K]

Answer: First train speed shall be 42 mi/hr

Second train speed shall be 84 mi/hr

Yes it is the valid answer, it gets annoying when almost everyone enters the wrong answer for a good laugh. Either way, hope this helps! Have a spectacular day.

Step-by-step explanation:

What is the 1st train's head start in miles?

Let +s+ = the speed of the 1st train in mi/hr

From 2PM to 4PM is 2 hrs

+d%5B1%5D+=+s%2A2+

---------------------

Let +d+ = distance the 2nd train travels until

it overtakes the 1st train

From 4PM to 6PM is 2 hrs

Start time when the 2nd train leaves

---------------------

Equation for 1st train:

(1) +d+-+2s+=+s%2A2+

Equation for 2nd train:

(2) +d+=+%28+s%2B42+%29%2A2+

--------------------

Substitute (2) into (1)

(1) +%28+s%2B42+%29%2A2+-+2s+=+s%2A2+

(1) +2s+%2B+84+-+2s+=+2s+

(1) +2s+=+84+

(1) +s+=+42+

and

+s%2B+42+=+42+%2B+42+

+s+%2B+42+=+84+

------------------

The 1st train's speed is 42 mi/hr

The 2nd train's speed is 84 mi/hr

---------------------------

check:

(2) +d+=+%28+s%2B42+%29%2A2+

(2) +d+=84%2A2+

(2) +d+=+168+

and

(1) +d+-+2s+=+s%2A2+

(1) +d+-+2%2A42+=+42%2A2+

(1) +d+=+84+%2B+84+

(1) +d+=+168+

8 0
2 years ago
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