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lara31 [8.8K]
3 years ago
9

-3x + y = 22 -12x – 10y=-10

Mathematics
1 answer:
dimaraw [331]3 years ago
8 0

Answer:

<h3>               x = -5,  y = 7</h3>

Step-by-step explanation:

-3x + y = 22     ⇒  y = 3x + 22

-12x - 10y = -10  and  y = 3x + 22

-12x - 10(3x + 22) = -10

-12x - 30x - 220 = -10

               +220       +220

 - 42x  = 210  

 ÷(-42)     ÷(-42)

    x = -5

y = 3(-5) + 22 = -15 + 22 = 7

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Which statement best describes the graphs of the lines
adoni [48]

Answer:

A

Step-by-step explanation:

Since they have the same slope and have different y-intercept they're parallel

3 0
3 years ago
What is 6 1/3 - 2 1/5
Semmy [17]

Answer:

4 2/15

Step-by-step explanation:

okay so let's first change 1/3 and 1/5 into the same fraction,

the common denominator, is 15

3 times 5, to get to fifteen,

so

5/15 and 3/15

minus eachother

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6-2 is 4

4 2/15

7 0
3 years ago
What is the sixth term of the sequence an=-3•2n+1<br>a6=
muminat

Answer:

a_6=-384

Step-by-step explanation:

The n^{th} term of the sequence is given as a_n=-3\cdot 2^{n+1}.

To find the sixth term, which is denoted by a_6, we substitute n=6 into the given rule.

This will give us:

a_6=-3\cdot 2^{6+1}

Simplify the exponent to get:

a_6=-3\cdot 2^{7}

We simplify further to get:

a_6=-3\cdot 128

This simplifies to

a_6=-384

8 0
3 years ago
Fractions : $1,000 <br><br> 1/4. <br><br> Someone plz help
olga2289 [7]

Not 100% sure exactly what you’re asking, but if you are asking what is 1/4 of $1,000, all we need to do to find the answer is <u>divide</u> $1,000 by the <u>denominator</u> of the fraction which is <u>4</u>

$1,000 ÷ 4 = $250

Therefore, 1/4 of $1,000 is $250


Hope this helps you

-AaronWiseIsBae

8 0
3 years ago
What’s the area of the figure below?
TEA [102]

Answer:

482.5 ft^2.

Step-by-step explanation:

The figure can be regarded as a rectangle with a triangle cut out of one corner.

The base of the triangle = 25-20 = 5 in and the height = 20 - 13 = 7 in.

The required area = area of rectangle - area of triangle

= 25*20 - 1/2 * 5 * 7

= 500 - 17.5

= 482.5 ft^2

5 0
3 years ago
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