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3 years ago

Linear equation

Mathematics

1 answer:

Mazyrski [523]3 years ago

6 0

<h2><u>Answer:</u></h2>

Susan = x

Gina = 3x

Sum of their ages = 12

Susan's age = ?

We can see that,

$2x=10x = \frac{10}{2}x= 210 x = 5x=5$

Susan is <u>3</u><u> </u><u>years </u>old.

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Consider this option:
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3 years ago

Solve for r: C = 2 pi r. (1

katen-ka-za [31]

Answer:

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Triangle ABC is graphed in Quadrant I of a coordinate plane, and none of the vertices have an x-coordinate or

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Answer:

Step-by-step explanation:

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3 years ago

Students were asked to write 6x5 + 8x - 3x3 + 7x7 in standard form.

dimulka [17.4K]

Answer:

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Step-by-step explanation:

Students are asked to write $6x^{5} + 8x - 3x^{3} + 7x^{7}$ in the standard form.

Now, in the standard form of a polynomial the highest power of the variable takes the leftmost position and the lowest power of the variable takes the rightmost position and the power of variable decreases from left to right.

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2 years ago

A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a single-strand electric f

likoan [24]

Step-by-step explanation:

Let x be the length and y be the width of the rectangular plot.

The plot is bounded on one side by a river and on the other three sides by a single-strand electric fence. It means,

x+2y = 1500

x = 1500 - 2y ....(1)

We know that the area of a rectangular plot is given by :

A = xy ....(2)

Put the value of x from equation (1) in (2)

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For largest area, differentiate above area equation wrt y.

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3 years ago