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devlian [24]
3 years ago
14

When resting, a spring measures 73.3 millimeters. When the spring is

Mathematics
1 answer:
Firlakuza [10]3 years ago
4 0

Answer:

  -30%

Step-by-step explanation:

The percentage change in length is given by ...

  percent change = ((new length) -(original length))/(original length) × 100%

  = (51.29 -73.3)/73.3 × 100%

  = -22.01/73.3 × 100% = -0.30027 × 100%

  = -30%

The decrease in the length of the spring was 30%.

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Zolol [24]

Answer:

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2 years ago
A survey in one middle school showed that 3 out of 5 students
Anestetic [448]
Take 3/5 of 485 you got it
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A scale for a map states that 2 inches equals 25 miles. If the distance from Dallas to Houston on the map is 19.2 inches, what i
Feliz [49]

Answer:

240

Step-by-step explanation:

\frac{inches}{miles}\\\frac{2}{25}=\frac{19.2}{?}

When doing proportions you multiply the numerator of  one  fraction by the denomenator of the other. Here the available pair is 19.2 and 25. This means that we multiply 19.2 by 25, which equals 480. The next step is to divide by the remaining numerator or denomenator. Here we divide 480 by 2, which equals 240.

6 0
3 years ago
Read 2 more answers
Y2+3y−4divided by y^2−5y+4
EleoNora [17]

Answer:

(y+4)

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

(y-4)


y cannot equal 4 or 1

Step-by-step explanation:

y^2 +3y -4

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

y^2 -5y +4

I will factor the numerator and the denominator

(y+4) (y-1)

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

(y-4) (y-1)

The factors that must be excluded must be determined before we cancel

y cannot equal 4 or 1 because that would make the denominator go to zero

Cancel y-1 from the numerator and denominator

(y+4)

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

(y-4)

3 0
4 years ago
Pls help its due soon! pls and thank u :)
Sladkaya [172]

Answer:

B

Step-by-step explanation:

It's B because Holly has a negative account balance and Emily has a positive account balance. Therefore Holly's account balance is less than Emily's account balance.

If you have any questions just reply back :)

5 0
3 years ago
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