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Naya [18.7K]
2 years ago
10

B) 36 kg in the ratio 1:3:5​

Mathematics
1 answer:
ale4655 [162]2 years ago
8 0

9514 1404 393

Answer:

  4 kg : 12 kg : 20 kg

Step-by-step explanation:

The total number of "ratio units" is 1+3+5 = 9, so each of them represents ...

  (36 kg)/9 = 4 kg

Multiplying the given ratio by 4 kg will show the appropriate division:

  1(4 kg) : 3(4 kg) : 5(4 kg) = 4 kg : 12 kg : 20 kg

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What does g(n) equal
NikAS [45]
We are given the function: 
g(n) = 3 (\frac{7}{5} )^n

We need to find what g(-3) equals. 

What the question is asking is what is the resulting value after you plug in -3 as n to the function. Meaning you replace the n that is in the function with -3. 

g(-3) = 3( \frac{7}{5})^{-3}

Remember back to the order of operations. 

Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

For this problem we can keep the fraction as it is (unless you are permitted to use a calculator... if that is the case then just plug all that into a calculator) and keep going to the exponent. 

Negative exponents make fractions FLIP. So our fraction will look like this: (\frac{7}{5})^{-3} =  (\frac{5}{7})^{3}

Now that we have it without the negative exponent we need to distribute the cubed power to each number in the fraction (which is essentially the same as saying this: \frac{5}{7}* \frac{5}{7}* \frac{5}{7})

\frac{5^{3}}{7^{3}} =  \frac{125}{343}

We ARE NOT done! We still have this left: 
g(-3) = 3 \frac{125}{343}
Multiplying by 3 you get the following: 

\frac{375}{343}

So what does g(-3) equal? This right here: 

\frac{375}{343}
5 0
3 years ago
ANSWER FAST PLEASE Alyssa read 25 pages of a new book the first day she bought it. After the first day , she read 5 pages a day
lara [203]

Answer:

10 days

Step-by-step explanation:

7 0
3 years ago
Multiply and Simplify<br> (x-5)(x^3 - 6x - 4)
Whitepunk [10]

Answer:

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Step-by-step explanation:

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=x4−6x2−4x−5x3+30x+20

=x4−5x3−6x2+26x+20

8 0
3 years ago
How do you write 25/45 as a ratio
Gwar [14]
It is 5:9 in simplest form 
3 0
3 years ago
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Find f (-2) if f (x)=4x+1
telo118 [61]

Answer:

f(-2)=4(-2)+1= 7

Step-by-step explanation:

8 0
3 years ago
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