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lyudmila [28]
3 years ago
12

Nikki had a $50 gift card for her favorite store. She used the gift card to buy 4 DVDs and still had money available on the card

after the purchase. If the DVDs were all the same price, which inequality best represents the possible price of each DVD?
A.P>12.50
B.P≥12.50
C.P<12.50
D.P≤12.50
Mathematics
2 answers:
Ilya [14]3 years ago
8 0
The answer the questions is Option D.

Y_Kistochka [10]3 years ago
3 0
C?
 im kiiiinda guessing because i suck at math lol. 
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Pls help !!!!! i'll mark brainliest
ExtremeBDS [4]

Answer:

Last year there were 550 bison in the heard and this year it is 10% larger.

10% is also 10/100 or 0.10

To find 10% of the heard last year

550 x.0.10 = 55. To find the number in the heard this year add 550 (last year) + 55 (10% growth) = 605 or,

to find how many there are now last years heard size was 100% of the heard or 1.00. To find any percent more add it to 1.00 and multiply by the starting amount.

550 x 1.10 = 605

For the second example.

If there are 550 bison in the heard this year, and this year was a decrease of 10% from last year we can express last year's number like this.

550 = (x - (x * 0.10)) simplify;

550 = 1x - 0.10x

550 = 0.90x

Divide both sides by 0.90

x = 611.11 but it's hard to have 0.11 of a bison so realistically 611 bison last year. Subtract 10% or 61 and you indeed have 550 this year.

5 0
3 years ago
Numbers like 10, 100, 1000 are called?
Y_Kistochka [10]
Those number are all powers of 10
10= 10^1
100= 10^2
1000= 10^3
and so on...
5 0
3 years ago
Read 2 more answers
Given the functions f(x) = 3(0.56)^x and g(x) = 6(4)^x
rodikova [14]
A)  f(x) is decreasing because the base is less than 1.
      0.56 is close to 0.5, so its like saying that you are taking half each time, therefore the value is getting smaller.

g(x) is increasing because the base is greater than 1.
you are multiplying by 4 each time, making the value bigger.


B )  The y-intercept is where x=0.
      Anything to the '0' power is 1. Therefore the y-intercept is equal to the coefficient in front of each function.
    f(x) = 3 ,   g(x) = 6


C)  Just plug in x=4 to each function in a calculator.
 f(4) = 0.295
g(4) = 1536
7 0
3 years ago
What is the equation of the line that passes through the point (-1, -3) and has a slope of 3?
iogann1982 [59]

Answer:

y=3x

Step-by-step explanation:

Use a calculator to guess and check

5 0
3 years ago
Detailed answers appreciated: (7a -4) (2a -5)
igor_vitrenko [27]
Expand the expression?

Perform indicated multiplication:

7a(2a)+7a(-5)-4(2a)-4(-5)

14a^2-35a-8a+20  combine like terms, ie (-35a-8a)=-43a

14a^2-43a+20
5 0
3 years ago
Read 2 more answers
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