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Inessa [10]
3 years ago
9

What is the value of fraction 1 over 3x2 + 5.2y when x = 3 and y = 2?

Mathematics
2 answers:
LenaWriter [7]3 years ago
4 0
\dfrac{1}{3}x^2+5.2y\\\\for\ x=3\ and\ y=2\\\\\dfrac{1}{3}\cdot3^2+5.2\cdot2=\dfrac{1}{3}\cdot9+10.4=\dfrac{9}{3}+10.4=3+10.4=13.4
GrogVix [38]3 years ago
3 0

Answer:

B. 13.4

Step-by-step explanation:

We have the fraction, L=\frac{1}{3}x^2+5.2y.

It is required to find the value of the fraction when x = 3 and y = 2.

So, on substituting these values, we get,

L=\frac{1}{3}(3)^2+5.2\times 2

i.e. L=\frac{9}{3}+10.4

i.e. L=3+10.4

i.e. L=13.4

So, the value of the fraction is 13.4

Hence, option B is correct.

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the sum of two numbers is 123. when the larger number is added to 5 times the smaller, the sum is 343. find the numbers.​
vovikov84 [41]
Create a system of equations
x + y = 123
5x + y = 343

I use substitution
y = 123 - x
5x + 123 - x = 343
4x + 123 = 343
4x = 220
x = 55

Plug in
x + y = 123
55 + y = 123
y = 68

Check
5x + y = 343
5(55) + 68 = 343
275 + 68 = 343
343 = 343
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2 years ago
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shutvik [7]

Answer: 1:3

Step-by-step explanation:

<u>Divide both sides by 25:</u>

25/25:75/25

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3 years ago
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The set of points P(0, 3), Q(2, 0), R(4, -3) are collinear and the line has a slope of _____.
vampirchik [111]

Answer:

slope = -1.5

Step-by-step explanation:

A set of three or more points are said to be collinear if they all lie on the same straight line.

We have been given the following collinear set of points;

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This implies that P, Q, and R lie on the same line.

The slope of a line is defined as; (change in y)/(change in x)

Using the points P and Q, the slope of the line is calculated as;

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Answer:

1. Prime numbers are easier to count. (Not a statement)

2.Irrational numbers can be written as fractions. (Statement)

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i hope it will help you!

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3 years ago
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Ivenika [448]

The decimal equivalent of 7 half’s is the number in decimal form

The exact decimal equivalent of 7 half’s is 3.5

<h3>What is a decimal number?</h3>

A decimal number is a number represented by an integer and a fractional part

<h3>How to determine the decimal equivalant?</h3>

The number is given as:

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Hence, the exact decimal equivalent of 7 half’s is 3.5

Read more about decimals at:

brainly.com/question/1827193

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