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Hatshy [7]
3 years ago
10

HELPP!!!!!

Mathematics
1 answer:
Alja [10]3 years ago
3 0

Answer:

choice b

Step-by-step explanation:

3.49

____ = 0.1396 ≈ 0.14 or 14 cents per ounce

25

4.79

____ = 0.10644444 ≈ 0.11 or 11 cents per ounce

45

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a utility worker is 5.5 feet tall and is casting a shadow 4 feet long at the same time a nearby utility pole casts a shadow 20 f
Assoli18 [71]

So this is essentially a proportion problem. They want you to be able to recognize a relationship between the two. The easiest way to go about this is to draw a picture (I have included one). What you want to do is notice that you are given both shadow lengths. This is essentially going to be your first step to creating the proportion.


Understanding that we know the shadow lengths, we can turn these into a fraction such as so:


4ft/20ft.


Now that we know that, we need to look at are unknown. Our unknown is the height of the utility pole. We can solve this by substituting for X since we know the utility worker is 5.5 ft tall.


Your fraction for that would look like:


5.5ft/X


Make sure to always make your top to top match, such as since I put the utility worker's shadow on top, I need to put his height on top.

Now we can solve.

4ft/20ft =5.5ft/X


We need to cross multiply to get an equation we can work with. If we cross multiply, Your equation will look like:


4x = 110ft


This is a simple one step equation. Divide both sides by 4 to get your answer.

x= 27.5ft.

This means your Utility pole's height is 27.5ft.

6 0
3 years ago
4x-2/6 = 5/3<br>anyone got a clue ?​
Novosadov [1.4K]

\frac{4x - 2}{6}  =  \frac{5}{3}  \\  \\ 3(4x - 2) = 6 \times 5  \\ 12x - 6 = 30 \\ 12x = 30 + 6 \\ 12x = 36 \\ x =  \frac{36}{12} \\   \\ x = 3

.... Hope this will help....

5 0
3 years ago
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8 divided by 2 4/9 plz help me now
dezoksy [38]

Answer:

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Step-by-step explanation:

you simplify the fraction then you make 8 into 8/1 then you divide and if you want decimal its 3.27272727273

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The third term of an arithmetic sequence is 21, and the eighth term is 56. The first term is
vodomira [7]
a_3=21;\ a_8=56\\\\a_8-a_3=5d\\\\5d=56-21\\5d=35\ \ \ |divide\ both\ sides\ by\ 5\\d=7\\\\a_1=a_3-2d\\\\a_1=21-2\cdot7\\a_1=21-14\\a_1=7\\\\Answer:\boxed{a_1=7}
5 0
3 years ago
Help........................................................................
stealth61 [152]

Step-by-step explanation:

what is Fahrenheit use celsius bruuuhhhh

7 0
3 years ago
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