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3 years ago

10

Solve the system of linear equations below. 2x + 3y = 2 x + 6y = 4

1 answer:

Sveta_85 [38]3 years ago

3 0

Step 1: Distribute
$2(2x+3y=2)$
$x+6y=4$

Step 2: Rewrite
$4x+6y=4$
$x+6y=4$

Step 3: Solve
$5x/5=0/5$
$x=0$

Step 4: Replace back into original first equation
$0+6y=4$
or $6y=4$

Step 5: Solve
$6y/6=4/6$
$y= \frac{2}{3}$

Your answer is $(0, \frac{2}{3})$

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-8 + x = 12<br> I don't get it and i need help

Blababa [14]

Answer:

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so the answer is 20

Step-by-step explanation:

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3 years ago

Jolie uses 2 tomatoes every day to prepare her salad. If n equals the number of tomatoes Jolie had before she made her salad and

densk [106]

Question worded very badly..
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3 years ago

Square pyramid is made up of a base with a side length of 10 inches and faces that are triangles with a height of 12 inches what

Nataly [62]

The surface area of the square pyramid is 360 in²

Explanation:

Given that the side length is 10 inches.

The height of the pyramid is 12 inches.

We need to determine the surface area of the pyramid.

The surface area of the pyramid is given by

$SA=s^2+2sl$

Where s is the side length and l is the slant height.

The slant height can be determined using the formula,

$l=\sqrt{h^2+b^2}$

where h = 12 and $b=\frac{s}{2} =5$

Substituting these values in the formula, we get,

$l=\sqrt{12^2+5^2}$

$=\sqrt{144+25}$

$l=\sqrt{169}$

$l=13$

Thus, the slant height is $l=13$

Now, we shall find the surface area of the pyramid.

Substituting $l=13$ and $s=10$ in the formula $SA=s^2+2sl$ , we get,

$SA=10^2+2(10)(13)$

$=100+260$

$SA=360 \ in^2$

Thus, the surface area of the square pyramid is 360 in²

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4 years ago

Scientist Asterix uses 19 base number system. Which

belka [17]

Answer:

A. I

Step-by-step explanation:

first 10 symbols are digits from 0 to 9

then next 9 symbols are alphabets from A to I

so the largest symbol is I

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3 years ago

Read 2 more answers

A bookstore had 60 copies of a magazine. Yesterday, it sold 2/3 of them. Today, it sold 4/5 of what remained. How many copies do

laiz [17]

Answer:

4 copies

Step-by-step explanation:

After yesterday's sales, 1/3 of the original supply remained. After today's sales, 1/5 of that value remain. So the remaining number is ...

60·(1/3)(1/5) = 60/15 = 4

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3 years ago