What is the volume of a rectangular prosimians that's W=1/5m H=1/5m L=1/4m

Anna, Ivan and Elena are running for class president. On Thursday night Anna had 20% of the votes, Ivan had 35% of the votes and

hodyreva [135]

Answer:

28%

Step-by-step explanation:

On Thursday night Anna had 20% of the votes, Ivan had 35% of the votes and Elena had 45% of the votes. You can take the number of total votes on Thursday equal to 100, then Anna had 20 votes, Ivan had 35 votes and Elena had 45 votes.

Let x be the number of votes added on Friday. All of them favored Elena, then Elena in total had 45+x votes and the number of all votes became 100+x. In the end Anna had 16%, then

100+x - 100%,

20 - 16%.

Write a proportion:

$\dfrac{100+x}{20}=\dfrac{100}{16},\\ \\16(100+x)=2000,\\ \\1600+16x=2000,\\ \\16x=400,\\ \\x=25.$

Find the percent of the voters that chose Ivan:

125 - 100%,

35 - y%.

Write a proportion:

$\dfrac{125}{35}=\dfrac{100}{y},\\ \\125y=35\cdot 100,\\ \\y=\dfrac{35\cdot 100}{125}=\dfrac{35\cdot 4}{5}=7\cdot 4=28\%.$

5 0

3 years ago

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a factory manufactures a metal piece in 32 minutes now technology allowed the factory to cut the time by 8% then another Improve

aliya0001 [1]

Answer:

28 minutes

Step-by-step explanation:

First you have to find what 8% off of 32 is

If you take away 8% of 100% you have 92%

In order to find 92% of 32 you must divide 92 by 100 and multiply it by 32

.92 x 32 = 29.44

Then you have to take off another 5%

Of you take 5% off of 100% you have 95%

.95 x 29.44 =27.97

Then round to the nearest minute

28 minutes

7 0

3 years ago

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Calculate the first and second velocities of the car with three washers attached to the pulley, using the formulas v1 = 0. 25 m

Travka [436]

The first and second velocities of the car are 0.25/t1 and 0.50/t2 respectively.

Given data:

The value of the first distance is, d1 = 0.25 m.

The value of the second distance is, d2 = 0.50 m.

<h3>What is velocity?</h3>

The ratio of distance covered by an object in a specific direction and the time taken to cover the distance is known as the velocity of the object. Mathematically, the expression for the velocity is,

v = d/t

Here, d is the distance covered.

And t is the average time taken to cover the distance.

Then the first velocity of the car at 0.25 m is,

v1 = d1/t1

v1 = 0.25 / t1

Here, t1 is the average time for the first distance.

And the second velocity of the car with four washers at the 0. 50 m mark is,

v2 = d2/t2

v2 = 0.50 /t2

here, t2 is the average time for the second distance.

Thus, we can conclude that the first and second velocities of the car are 0.25/t1 and 0.50/t2 respectively.

To know more about Velocity click the link given below.

brainly.com/question/25796948?

3 0

3 years ago

Which reason best describes why you can divide any number by 100 by moving the decimal point two places to the left?

Svetach [21]

Moving the decimal point two places to the left makes the number 1/100 of its original number.

3 0

3 years ago

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Tyler went to the supermarket to buy food for a food pantry. He has $36 and can carry up to 20 pounds of food in his backpack. P

Anastasy [175]

Answer:

8

Step-by-step explanation:

yep that's the answer all you have to do is.

{x + 3y <=36

{x + 1.5y <=20

{x = y

y+3y<=36

4y<=36

y<=9

y+1.5y<=20

2.5y<=20

y<=8

min(8,9) = 8

x = 8, y = 8

7 0

4 years ago