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Mila [183]
3 years ago
13

Brianna bought a compact disk for $10. An instant rebate gave her a discount and she only had to pay $7.50 for the CD. What is t

he discount, as a percent, that the instant rebate gave her?
Mathematics
1 answer:
svetoff [14.1K]3 years ago
3 0

Answer:

25%

Step-by-step explanation:

The discount was $2.50.  Dividing $2.50 by $10, we get 0.25, or 25%

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(8 pts)
Elan Coil [88]

Answer:

{x,y,z} = {-22/13,29/13,6/13} 

7 0
2 years ago
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NEED ANSWER ASAP PLEASE HELP
Artyom0805 [142]

Step-by-step explanation:

the answer is C I'm 100% sure of it

3 0
3 years ago
Find the answers to the following:
Mama L [17]

Answer:

A) y=mx+b

B) The slope of a line is a number that describes both the direction and the steepness of the line. The slope of the line is either increasing, decreasing, horizontal or vertical.

C) m= rise/run =y2-y1/x2-x1

D) A rate of change describes how one quanity changes with respect to the other. The rate of Change for a line is the slope, the rise over run, or the change in y over the change in x.

E)The y-intercept of the line is the value of y where the line crosses the y-axis.

F)The x-intercept of the line is the value of x where the line crosses the x-axis.

G) The point-slope formula is y-y1=m(x-x1)

H)HOY stands for Horizontal line, slope =0, their equations are in the form y= a constant

I)VUX stands for Vertical line, slope =Undefined, their equations are in the form x= a constant

J)If two lines are parallel, this means that the slopes are the same and the y-intercept are different.

K) The slope of perpendicular lines are the negative reciprocals of each other, and a pair of these lines intersects at 90 degrees

L) The similarities between parallel lines are they have the same steepness, or same angle from the horizontal. Since they have the same steepness they have the same slope.

M)The relationship between two lines that are perpendicular intersect at right angles. they are coplanar lines

8 0
3 years ago
The formula below is used to convert a temperature in degrees clesius,C ,to a temperature in degree fehrenheit,F.
klio [65]

Answer:

59degrees farenheit

Step-by-step explanation:

Just replace celcius with 15 and solve.

6 0
2 years ago
What is the absolute value of 4/13
natali 33 [55]
The absolute value of 4/13 is 4/13 because when you put something in absolute value it becomes positive and sense this is already positive it stays. hope this helps :))))
8 0
3 years ago
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