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3 years ago

How many solutions does this linear system have? y= 5a-1 -15 3y = 3

Mathematics

1 answer:

erastova [34]3 years ago

4 0

Answer:

The answer would be B one solution

Hope this helps

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Find the cost of tiling a rectangular plot of land 300 m long and 150 m wide at the rate of $6 per square m.

SVETLANKA909090 [29]

Answer:

$270,000

Step-by-step explanation:

First, find the area of the plot using the formula A = lw

A = lw

A = (300)(150)

A = 45,000

Then, multiply this by 6 to find the total cost:

45,000(6)

= 270,000

So, the cost to tile the plot is $270,000

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3 years ago

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What is the eighteenth century written in number form?

ehidna [41]

The answer to that would just be 18 if you want the word in number form, I'm actually kinda confused on what your question means

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3 years ago

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Please help w/ this question <br><br> image attached

elena-s [515]

I believe that is 120

6 0

3 years ago

I need help ASAP I will name brainlest if you get it right and no bad answers

Dovator [93]

Answer:

1,000

Step-by-step explanation:

really sorry if wrong. But if it is wrong:

Volume= length time width time height

hope this helps! :)

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3 years ago

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Write an equation in standard form for the line, where the points (-2, -1) and (0, 4) are on the line

DedPeter [7]

Answer:

An equation in standard form for the line is:

$\frac{5}{2}x-y=-4$

Step-by-step explanation:

Given the points

(-2, -1) and (0, 4)

The slope between two points

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(-2,\:-1\right),\:\left(x_2,\:y_2\right)=\left(0,\:4\right)$

$m=\frac{4-\left(-1\right)}{0-\left(-2\right)}$

$m=\frac{5}{2}$

Writing the equation in point-slope form

As the point-slope form of the line equation is defined by

$y-y_1=m\left(x-x_1\right)$

Putting the point (-2, -1) and the slope m=1 in the line equation

$y-\left(-1\right)=\frac{5}{2}\left(x-\left(-2\right)\right)$

$y+1=\frac{5}{2}\left(x+2\right)$

$y=\frac{5}{2}x+4$

Writing the equation in the standard form form

As we know that the equation in the standard form is

$Ax+By=C$

where x and y are variables and A, B and C are constants

$y=\frac{5}{2}x+4$

$\frac{5}{2}x-y=-4$

Therefore, an equation in standard form for the line is:

$\frac{5}{2}x-y=-4$

7 0

3 years ago