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anyanavicka [17]
3 years ago
7

Hellppp asapppp tysmm

Mathematics
2 answers:
Vsevolod [243]3 years ago
4 0

Answer:

C - 3/5

Step-by-step explanation:

add all the numbers up (30, 40, 15, 15) which = 100

subtract 40 from 100 giving you 60

make it a fraction giving you 60/100

simplify your fraction reducing to 3/5

Fiesta28 [93]3 years ago
3 0

Answer:

3/5

Step-by-step explanation:

30 + 40 + 15 + 15 = 100

40/100 will be green

100/100 - 40/100 = 60/100

60/100 will NOT be green

60 ÷ 5 = 12

100 ÷ 5 = 20

12 ÷ 4 = 3

20 ÷ 4 = 5

3/5

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ra1l [238]
I think the answer is B.
6(-3)=-18, and y=2
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6 0
3 years ago
The sum of two numbers is 9.9, and the sum of the squares of the numbers is 53.21. What are the numbers?
Snezhnost [94]

Answer:

There are two possibilities:

x_{1} = 3.5 and y_{1} = 6.4

x_{2} = 6.4 and y_{2} = 3.5

Step-by-step explanation:

Mathematically speaking, the statement is equivalent to this 2-variable non-linear system:

x + y = 9.9

x^{2} + y^{2} = 53.21

First, x is cleared in the first equation:

x = 9.9 - y

Now, the variable is substituted in the second one:

(9.9-y)^{2} + y^{2} = 53.21

And some algebra is done in order to simplify the expression:

98.01-19.8\cdot y +2\cdot y^{2} = 53.21

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Roots are found by means of the General Equation for Second-Order Polynomials:

y_{1} \approx \frac{32}{5} and y_{2} \approx \frac{7}{2}

There are two different values for x:

y = y_{1}

x_{1} = 9.9-6.4

x_{1} = 3.5

y = y_{2}

x_{2} = 9.9 - 3.5

x_{2} = 6.4

There are two possibilities:

x_{1} = 3.5 and y_{1} = 6.4

x_{2} = 6.4 and y_{2} = 3.5

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serg [7]

My answer was wrong, I'm am very sorry

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How do I get my answer
Snezhnost [94]
(h + j)(x)
h(x) + j(x)
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2 years ago
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