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pickupchik [31]
3 years ago
7

Solve for X -5x=45 A 225 B 9 C -9 D 45

Mathematics
1 answer:
andriy [413]3 years ago
8 0
X=-9

-x=9 so x=-9 since you inverse the sign
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Write an equation for the graph below in slope-intercept form:
Zanzabum

Answer: y<1x-2

Step-by-step explanation:

Find some coordinates on the line to write a slope intercept form equation for the line and turn it into inequality.

First we need to find the slope and the y-intercept. The y intercept is when x is 0 and as we can see it  already indicates that the y intercept is -2 .

(0,-2)

(2,0)   Use these points o the find the slope.

0- 2 = -2

-2 -0 = -2

-2/-2 = 1   The slope is one so the equation will be y = 1x - 2   But since this is not an inequality we have to change the equal to sign to an inequality sign.

Looking at the line, it is a dashed line so the inequality sign will be > or <  

The painted side of the graph represents the solutions of the graph  and that is all underneath the graph so the inequality will be   y < 1x-2

8 0
2 years ago
Which graph or equation represents a nonproportional relationship?
Brut [27]

The graph that does not represents a proportional relationship is: A (see image attached below).

<h3>What is a Proportional Relationship?</h3>

A proportional relationship has a constant, which is uniform and is defined in the equation y = kx, as k. This means a relationship that is proportionate will have an equation in that form.

For a proportional graph, the line must pass through the point of origin which is denoted by the ordered pair, (0, 0).

Therefore, from the options given, the option B represents a proportional relationship because it contains (0, 0), while option C and D takes the form of y = kx.

Therefore, option A does not represent a proportional relationship.

Learn more about proportional relationship on:

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5 0
2 years ago
Read 2 more answers
6 is what percent of 8
mars1129 [50]
6/8 = 0.75
0.75 x 100 = 75%
3 0
3 years ago
Tonya went out to a restaurant for lunch. she tipped 12% of her bill, which brought the sum of the lunch bill plus the tip to $2
Morgarella [4.7K]
112% of original=28

percent measn parts out of 100
112%=112/100=1.12

'of' means multiply

112% of original=28 means
1.12 times original=28
divide both sides by 1.12
original=25

original bill was $25
4 0
3 years ago
A store sells coats and umbrellas. On Monday, the store sells 7 coats and 12 umbrellas for a total of $399.45. On
laiz [17]

Answer:

28.35

Step-by-step explanation:

Let cost of 1 coat = c.

Let cost of 1 umbrella = u.

7c + 12u = 399.45;

3c + 25u = 503.80

Multiply both sides of the first equation by 25.

Multiply both sides of the second equation by 12.

175c + 300u = 9986.25

36c + 300u = 6045.6

Subtract the second equation from the first equation eliminating u. Then solve for c.

139c = 3940.65

c = 28.35

Answer: A coat costs $28.35.

3 0
1 year ago
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