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UNO [17]
3 years ago
12

Triple the sum of 45 and 55

Mathematics
1 answer:
Agata [3.3K]3 years ago
3 0
45+55= 100

100×3= 300
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103

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25.75 \div 0.25  = 103

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What is the slope of the line whose equation is y - 2/3 = 0?
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The slope is 0.

Step-by-step explanation:

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I don’t know how to do question 3
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The function y = -x whose reflection in the line y =x is itself.

Step-by-step explanation:

A reflection that maps every point of a figure to an image across a fixed line. Then the fixed line is called the line of reflection.

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3 years ago
Which expression means "6 more than the quotient of a number and 5"?
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Answer:

C

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it is given that the x intercept and y intercept of a straight line L are 3 and 5 respectively. If L passes through P(k, 10) fin
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Answer:

<em>k=-3</em>

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<u>Equation of a line</u>

The general equation of a line can be written as:

Ax+By=C

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A(3)+B(0)=C

3A=C

Solving for A:

A=C/3

The y-intercept is the point where the line crosses the y-axis, i.e. x=0, thus replacing x=0 and y=5:

A(0)+B(5)=C

5B=C

Solving for B:

B=C/5

Replacing into the general equation:

\displaystyle \frac{C}{3}x+\frac{C}{5}y=C

Simplifying by C:

\displaystyle \frac{x}{3}+\frac{y}{5}=1

The point P(k,10) belongs to the line, thus:

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Operating:

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Multiplying by 3:

\boxed{k=-3}

7 0
3 years ago
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