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just olya [345]
3 years ago
8

Plz help me I’m not good at math

Mathematics
2 answers:
grigory [225]3 years ago
6 0

Answer:

second one

Step-by-step explanation:

am pretty sure

andrezito [222]3 years ago
6 0

Answer:

8x - 4y = 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 2 and c = - \frac{3}{4} , then

y = 2x - \frac{3}{4} ← in slope- intercept form

Multiply through by 4 to clear the fraction

4y = 8x - 3 ( subtract 4y from both sides )

0 = 8x - 4y - 3 ( add 3 to both sides )

3 = 8x - 4y , or

8x - 4y = 3 ← in standard form

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Mike and his dad are retiling his bathroom floor. They have budgeted $200 for the tiles and supplies. The tiles cost $1.85 each
Feliz [49]

Answer:

Equation: $114.90 + $1.85<em>x</em> = 200

Solution: They can buy 46 tiles.

Step-by-step explanation:

First, subtract 114.90 from both sides to get 1.85<em>x</em> = 85.10.

Divide 85.10 by 1.85 to get 46, which is the answer.

7 0
3 years ago
How can you determine if a relation is a function?
Montano1993 [528]

Answer:

cause none of the x's will repeat

Step-by-step explanation:

4 0
2 years ago
During a 60 minute television program, 25% of the time is used for commercials and 5% of the time is used for the opening and cl
aksik [14]

Answer:

42 minutes

Explanation:

The total amount of anything expressed in percentage is 100%.

The reason for this is that per cent means per hundred.

So, 100% is

100

×

1

100

=

100

×

1

100

=

1

, which is a whole.

Moving to the question, a total of 25% + 5% = 30% of the time is used up by commercials and credits.

The time left for the program is 100% - 30% = 70%.

This is 70% of 60 minutes or

70

100

×

60

=

7

0

1

00

×

6

0

=

Step-by-step explanation:

3 0
3 years ago
Find the slope of the line.
Anika [276]

The equation for working out the slope of a linear line is: \frac{y_2 - y_1}{x_2 - x_1}, where x and y are the coordinate pairs.

So just pick two of the purple dots on the graph and fill in the equation.

I'll pick the dot that's (-4, 1) and (4, -7).

Now I just do \frac{7 - 1}{4 - -4}, which is just \frac{3}{4} when simplified.

6 0
3 years ago
Simplify the expression (-2a3b6c6)3
Ronch [10]

Answer:

-2ax3=-6a

3bx3=9b

6cx3=12c

6x3=12

therefore -6ax9bx12cx12

8 0
3 years ago
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