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butalik [34]
3 years ago
14

What is 20 add blank equals 63?

Mathematics
2 answers:
MArishka [77]3 years ago
8 0
To figure this out, you do 63 - 20 which is 43. I hope this helps!
Vlad [161]3 years ago
3 0

Answer:

Step-by-step explanation:

The answer is 43. All you have to do is subtract 20 from 63.

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Chapter 7 of the Jiuzhang suanshu presents a problem of two linear equations involving acres of land and their respective prices
djyliett [7]

Answer: 33.041666

Step-by-step explanation:

Given: The translated equation : 300x+y = 10000

To find the value of x if y = 87.5, we need to substitute the value of y in the given translated equation, we will get

300x+87.5 = 10000

Subtract 87.5 from both the sides , we get

300x=9912.5

Now, divide 300 on both the sides, we get

x=\frac{9912.5}{300}\\\\\Rightarrow x=33.041666666

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For percentages, use a pie graph.

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the stopping distance of an automobile is directly proportional to the square of its speed v. a car required 90 feet to stop whe
vesna_86 [32]
First we write the mathematical model in a generic way:
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 d = kv ^ 2
 Where,
 k: proportionality constant.
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 90 = k ((70) * (5280/3600)) ^ 2
 k = 90 / ((70) * (5280/3600)) ^ 2
 k = 0.008538539 s ^ 2 / feet
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 d = (0.008538539) * v ^ 2
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 Answer:
 a mathematical model that gives the stopping distance in terms of its speed v is:
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3 0
3 years ago
Please help!!!! Im so bad at math
kakasveta [241]

Answer:

-5.

Step-by-step explanation:

f(n) = 5n + 6

Just plug in  -11/5  for n:

f(-11/5) = 5 (-11/5) + 6

= -11 + 6

= -5.

5 0
3 years ago
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