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pickupchik [31]
3 years ago
7

Identify two ratios that are equivalent to 3:5

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
7 0
The correct answer is 15:25
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X 5.2.19
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Answer:

Step-by-step explanation:

y = ax² + bx + c

Plug the points into the equation to get a system of 3 equations with 3 unknowns a, b, and c.

-27 = 4a - 2b + c

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-12 = a + b + c

(a,b,c) = (-4,1,-9)

y = -4x² + x - 9

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2 years ago
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6 0
3 years ago
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X/-3-41=-11 show work please
Brilliant_brown [7]

The correct answer is x = -90.

To find this, solve using the order of operations. See the example below.

x/-3 - 41 = -11 ----> Add 41 to both sides

x/-3 = 30 ----> Multiply each side by -3

x = -90

4 0
3 years ago
Find the solution to the system of equations given below using substitution. PLEASE ANSWER QUICKLY
irinina [24]

Answer:

option D

D. x = 5, y = 2

Step-by-step explanation:

Given in the question two equation,

Equation 1

5.3x + y = 28.5

Equation 2

4.2x + 3.1y = 27.2

rearrange equation 1 in terms of y

y = 28.5 - 5.3x

Substitute the value of y in equation 2

<h3>4.2x + 3.1(28.5 - 5.3x) = 27.2</h3>

4.2x + 88.35 - 16.43x = 27.2

4.2x - 16.43x = 27.2 - 88.35

-12.23x = -61.15

x = 61.15/12.23

x = 5

put value of x in any of the equation

<h3>5.3(5) + y = 28.5</h3>

y = 28.5 - 26.5

y = 2

5 0
3 years ago
What is a equaled sign
topjm [15]
An equal sign is a symbol in mathematics.

It is to indicate that the given terms are <span>equal. 

It is also used to </span>indicate a mathematical <span>equality. 

An equal sign looks like ( </span>= ) this. 
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3 years ago
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