3 years ago

I need help on number 1

Mathematics

1 answer:

musickatia [10]3 years ago

6 0

A cube has 6 faces. The surface area of a cube is 6 times the area of one face.

SA = 6s^2

SA = 6 * 6cm^2

SA = 6 * 36cm^2

SA = 216cm^2

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5/8 brainliest im giving if u get it right :D

blondinia [14]

Well basically if they lost 8 points and gained 6, they have -2 points.

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3 years ago

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5c+12=11c+16-6c<br><br><br><br> Solve

Stella [2.4K]

Answer:

No solution.

Step-by-step explanation:

Nothing can be further done

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3 years ago

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a positive number is 5 times less than another positive number. Six times the lesser number plus 3 times the greater is 3. Find

IgorLugansk [536]

<h2>Greetings!</h2>

Answer:

One number is $\frac{5}{7}$ and the other number is $\frac{1}{7}$

Step-by-step explanation:

Let x be the smaller number and y be the bigger number.

x = x

y = 5x

6x + 3y = 3

6x + (3 * 5x) = 3

6x + 15x = 3

(÷3)

2x + 5x = 1

7x = 1

x = $\frac{1}{7}$

6x + 3y = 3

6( $\frac{1}{7}$ ) + 3y = 3

$\frac{6}{7}$ + 3y = 3

3y = 3 - $\frac{6}{7}$

3y = $\frac{15}{7}$

Divide both sides by 3 to get 1y:

y = $\frac{5}{7}$

So one number is $\frac{5}{7}$ and the other number is $\frac{1}{7}$

<h2>Hope this helps!</h2>

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3 years ago

When using the substitution method for solving a system of linear equations in two variables, what should be the first step?

Yuri [45]

The first step would be to isolate a variable (solve for a variable)....so u will have something to sub into the other equation

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Licemer1 [7]

Answer:

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Step-by-step explanation:

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