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Oksi-84 [34.3K]
3 years ago
10

Whats the ordered pair 14x-2y=78 and 2x-2y=6 using the substitution method

Mathematics
1 answer:
kozerog [31]3 years ago
8 0
(6, 3) is the answer

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A store decreases the price of an item from 120 to 90. what is the percent decrease
vampirchik [111]

There is a 25% decrease because the decrease is 30, which is 25% of 120.

8 0
3 years ago
What I the equation in standard form of the line that passes through the points(4,-8) and has a slope of 1/4
valentinak56 [21]

Answer:

Standard form of the line with point (4,-8) and slope of 1/4  is

-x + 4 y = -36.

Step-by-step explanation:

The slope of the line equation = 1/4

The point is given as (4,-8).

Now, by POINT SLOPE formula,

The line equation  with slope m  nad point (x0,y0) is given as:

(y - y0)  = m (x -x0)

So, the line equation here is given as

y -(-8)  =  \frac{1}{4} (x -4)\\\implies 4(y + 8)  = x - 4\\4 y + 32 = x - 4\\4y = x - 36

Now, the standard form of line equation is Ax + By  = C

Here,  4y = x - 36   ⇒  4y - x = -36

or, -x + 4y = -36 is the standard form.

Hence,standard form of the line with point (4,-8) and slope of 1/4

is -x + 4y = -36.

3 0
3 years ago
A shirt for $40, jeans for $50 and a watch for $35 are purchased at the mall. If 7% sales tax is charged, what will the total co
katrin [286]

Answer:

A

Step-by-step explanation:

Take 7 % turn into decial then dived

5 0
2 years ago
Read 2 more answers
58,365 rounded to the nearest thousand
stira [4]
58,365 rounded to the nearest thousand is 58,000
3 0
3 years ago
Read 2 more answers
Simplify: (-2x - 3) – (3x2 – 8x + 9). Choose the standard form of the answer.
lawyer [7]

Answer:

C

Step-by-step explanation:

Given

(- 2x - 3) - (3x² - 8x + 9) ← distribute parenthesis

= - 2x - 3 - 3x² + 8x - 9 ← collect like terms

= - 3x² + 6x - 12 → C

7 0
2 years ago
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