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Dovator [93]
3 years ago
5

URGENT!!!! Set up proportions for each variable and solve!!! I have a test tomorrow and have no clue how to do proportions!

Mathematics
1 answer:
vlada-n [284]3 years ago
8 0

Answer:

This is how you do proportions (images below). If you need more help just ask.

Step-by-step explanation:

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The water level in a swimming pool decreases from 60 inches to 58.25 inches in one week.
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3 years ago
Solve equation <br> 5x^4 = 405
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There are two possible solutions

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4 years ago
What is the interest rate of each investment if The annual interest on a $17,000 investment exceeds the interest earned on an $8
Butoxors [25]

<u>Solution-</u>

Let's assume, the rate of interest of $8000 is x%,

then the rate of interest of $17000 is (x+0.3x) =1.3x%

Interest earned by $8000,

i_1=\frac{8000\times x\times 1}{100} =80x

Interest earned by $17,000,

i_2=\frac{17000\times 1.3x\times 1}{100} =221x

According to the question,

\Rightarrow i_1=i_2+276

\Rightarrow 221x=80x+276

\Rightarrow 221x-80x=276

\Rightarrow 141x=276

\Rightarrow x=1.96

∴ Rate of interest of $8000 is 1.96% and rate of interest of $17000 is (1.3×1.96) =2.55%

3 0
3 years ago
The height of an arrow after being shot directly upwards can be modeled by h = −16t2 + 48t, where h is the height in feet and t
Wittaler [7]

Answer:I don’t really understand

Step-by-step explanation:

Can u please explain?

7 0
4 years ago
This is a question on proportions in geometry. Image has been shared.
Digiron [165]
A+b       5
------- = ---
2a-b      4

  b           5
-------- = ----  => 9b = 5a+45 => b = (5a+45)/9
 a+9       9


a+b       5
------- = --- => 4a+4b = 10a-5b
2a-b      4

9b = 6a

9(5a+45) =6a   divide both sides by 3

3(5a+45) = 2a

15a +135 = 2a

13a = -135

a = -135/13 = -10,38

a= -10,38

9b=6a

3b=2a

3b = 2(-10,38)

3b = -20,76

b = -20,76/3

b = -6,92

hope this helped 
7 0
3 years ago
Read 2 more answers
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