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suter [353]
3 years ago
6

2 Are 3(x – 4) – 2(2.5x - 1) and -2(x + 5) equivalent expressions?

Mathematics
1 answer:
Bogdan [553]3 years ago
8 0

Answer:

<u>Equivalent expressions</u>

Step-by-step explanation:

3(x – 4) – 2(2.5x - 1)

3x - 12 -5x +2

<u>-2x - 10</u>

and -2(x + 5)

<u>-2x - 10</u>

<u></u>

<u>Yes, They are Equal</u>

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11111nata11111 [884]

9514 1404 393

Answer:

  • shortest: 11 1/8 in
  • longest: 11 3/8 in

Step-by-step explanation:

It should be no surprise that the shortest allowable length is the nominal length less the full allowed tolerance:

  11 1/4 - 1/8 = 11 1/8 . . . inches

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Likewise, the longest allowable length is the nominal length plus the maximum tolerance:

  11 1/4 + 1/8 = 11 3/8 . . . inches

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Of course, you know that 1/4 = 2/8, so adding or subtracting 1/8 gives the fractions shown above.

5 0
3 years ago
Bernardo drives to work at an average speed of 50 miles per hour and returns along the same route at an average speed of 25 mile
-BARSIC- [3]
Bernardo travels the same distance at 25mph as he does at 50mph. However, since 25mph is only half of 50 mph, he must travel twice as long at 25mph. If you call the time he traveled 50mph "t", then 

<span>t+2t=3 </span>
<span>3t=3 </span>
<span>t=1 </span>

<span>This means he traveled 1 hour at 50mph. In this time, he traveled 50 miles. He traveled the same distance at 25mph, so his total distance was </span>

<span>50miles+50miles=100miles </span>

<span>so the round trip was 100 miles.</span>
6 0
3 years ago
The angle marked a = 79°.<br> Work out the value of x.<br><br> The diagram is not drawn accurately.
mart [117]

Answer:

x = 101 degrees

Step-by-step explanation

7 0
3 years ago
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tiny-mole [99]

Answer:

69420

Step-by-step explanation:

69 420 equils 69 420

8 0
3 years ago
(a)
mamaluj [8]

Answer:

10=16[ by cost]

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the cost 16 chairs is also x. 10x = 16x

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3 0
4 years ago
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