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umka2103 [35]
3 years ago
11

Can someone help me plz

Mathematics
1 answer:
Reika [66]3 years ago
3 0
If we represents a book's cost as x, that would mean that 5*x would represent the cost of 5 books (as x+x+x+x+x=5x) and 4x would be 4, resulting in 5x+4x=9x. After that, we get that 19 books is 19x as the cost, but since Agnus gets a 10 dollar discount, it's 19x-10. After that, to combine the two, we notice that Agnus still spends 5$ more than what they spent combined (9x) so we get that 9x+5=19x-10. Subtracting 9x from both sides, we get 10x-10=5. Adding 10 to both sides there, we get 10x=15 and we can divide 10 by both sides to get x=1.5
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Irina-Kira [14]
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3 years ago
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Assignment
lisov135 [29]

Answer:

<h2>y + 4 = x</h2>

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y=mx+b

m - slope

b - y-intercept → (0, b).

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points A(0, -4) → b = -4 and B(6, 2).

Calculate the slope:

m=\dfrac{2-(-4)}{6-0}=\dfrac{6}{6}=1

Put the value of m and of b to the equation:

y=1x-4         <em>add 4 to both sides</em>

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3 years ago
Please please need help on this been trying
mariarad [96]

Answer:

y = -7x + 0

Step-by-step explanation:

slope-intercept form is y = mx + b where m is the slope and b is the y-intercept

use any of the points on the graph. (0,0) (-1,7). find the slope

slope = y2 - y1/ x2 - x1

slope 7 - 0/ -1-0 = 7/-1 = -7. our slope is -7

so now we already have y = -7x + b. but we still have to find the y-intercept.

-7/1 = y - 7/x - (-1) cross multiply.

y - 7 = -7x - 7

y + 7x = -7 + 7

y + 7x = 0

y = -7x + 0

7 0
3 years ago
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exis [7]

Answer:

0.2, 0.21, 0.25 (1/4), 0.2666666 (4/15)

Step-by-step explanation:

8 0
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Black_prince [1.1K]

Answer:

True

Step-by-step explanation:

it seems that it is possible

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