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V125BC [204]
3 years ago
10

Write a real world problem with a percent that can be solved by using the proportion 3/b=60/100

Mathematics
2 answers:
Artist 52 [7]3 years ago
8 0

Answer:

A tree of 60 feet casts the shadow of 100 feet, at the same time, what is the length of the shadow of a boy who is 3 feet tall ?

Solution :

Let b represents the length ( in ft ) of the shadow of the boy,

∵ Height of the boy = 3 ft,

So, the ratio of the height of boy and his shadow = \frac{3}{b}

Now, the tree of 60 ft long casts 100 ft shadow,

So, the ratio of height of tree and its shadow = \frac{60}{100}

At the same time,

\frac{3}{b}=\frac{60}{100}

Which is the required equation.

iris [78.8K]3 years ago
7 0
Kyle received 60/100 on his algebra test.  If he scored 3 points, how many points was the test out of? Answer is 5.
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Find all excluded values for the expression.
ZanzabumX [31]

Answer:

-3

Step-by-step explanation:

For an expression to be undefined,. the denominator must be equal to 0

Therefore, in order to make that expression undefined, we must equate the denominator to 0

6 + 2v = 0

2v = 0 - 6

2v = -6

v = -6/2

v = -3

So in order to make the expression to be equal to 0, v must be -3

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HOW DO THE EXPRESSION 4(3+X) AND (3+3+3+3)+(X+X+X+X) COMPARE TO ANOTHER
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Which of the following is an irrational number?
Fantom [35]

Answer:

A.

Step-by-step explanation:

4 0
3 years ago
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100 points !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! please answer this question my grade needs to be up .
sladkih [1.3K]

Answer:

              Food in space

On earth we have a variety of foods, but we can not  enjoy every  food in space. Do you know why?In space astronauts eat non-delicious food but some people think the other way around. preparing food in space is complicated for many reasons, some are microgravity, some foods are not perfected for space  and some foods do not meet the requirements of space food.

preparing food in space can be very different from earth because of microgravity which makes the food float. According to the text “ no pizza in space” the author states  Soft drinks don't work because of microgravity. soda in space is a bit complicated, Because in microgravity the light gas bubbles won’t rush to the top of the liquid to escape.The bubbles of carbon dioxide in carbonated beverages aren't  floatable in a weightless environment, so they remain randomly distributed throughout the fluid, even after drinking. astronauts can't sprinkle salt and pepper on their food in space,They just float away because of microgravity. Scientists have made space food better than before and they will make space food better in the future for astronauts.

Some foods are not perfected to go to space because of many reasons. Milk is one of the foods that is not perfected and  It is also banned for going into space because milk is dehydrated. According to the text “ No Pizza in Space “ Pizzas have not been perfected yet to go to space.Bread is another food that is not perfected and also banned because the bread crumbs float around, and can fly into an astronaut’s eyes and interfere with important equipment.Ice cream is not perfect to go to space because in space shuttle there is no refrigerator and also scientists  have not made an Ice-cream that can go without a refrigerator.  Scientists are predicting more  food for astronauts as they live longer in space.

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In conclusion,  preparing food in space is complicated for many reasons, some are microgravity, some foods are not perfected and some foods do not meet the requirements of space food. astronauts need to eat a  Nutritionists diet to remain healthy in space as the discover the secrets of the unknown world  

 

hope it helped

 

Step-by-step explanation:

4 0
3 years ago
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Question in photo!! Will mark Brainlyist
victus00 [196]

Answer:

Option B.

a

Step-by-step explanation:

Given:

-3( -x + a ) + 7 < 5     When x = -1

To Find:

a ?

Solution:

-3( -x + a ) + 7 < 5     When x = -1

Substitute x = -1 in above  we get

-3(-(-1) + a ) + 7 < 5

-3(1 + a) < 5 - 7

Using Distributive Property we get i.e A(B+C) = AB + AC

\therefore -3\times 1 +(-3)\times a

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