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Pachacha [2.7K]
3 years ago
8

Hi can someone please help me

Mathematics
1 answer:
Afina-wow [57]3 years ago
3 0
The answer I believe is C
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Notebooks cost a $1.20 each this week and they will be on sale for $0.80 what percentage is the sale
ozzi

We can use algebra.

So, what rate time 1.20 = .80


Let x = the rate (in a decimal form)

1.20x = .80

x = .6666666666

Now, we need to multiply by 100 to get a percentage.

66.66 The price is 66% of the regular price.


They marked it off

33.33%

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3 years ago
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If square ABCD with side length of 7 units is reflected over the line y=x, what is length A'B'?
Art [367]

Answer:

  7

Step-by-step explanation:

Reflection is a rigid transformation, so the side length does not change.

  A'B' = 7

5 0
3 years ago
Walter has 3 more red peppers than green peppers. In all, he has 35 peppers. How many green peppers does Walter have?
Oksanka [162]

Answer:

16

Step-by-step explanation:

16+19=35

19-16=3

16 green peppers

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3 years ago
What is the rate of change for the function f(x)=2x-3
Stolb23 [73]

Answer:

2

Step-by-step explanation:

f(x) = 2x - 3 is a linear function

The rate of change of a linear function is the measure of the slope.

The equation is in slope- intercept form, that is

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

y = 2x - 3 has slope m = 2

Thus rate of change = 2

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Renee is wanting to join a gym.
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Pumping iron: 10x+90=0
Fit for life: 15x+50=0

Set them equal to each other. 10x+90=15x+50. Solve for x. Subtract 50 from both sides, get 10x+40=15x, then subtract 10x from both sides, getting 40=5x. Divide 5 from both sides to isolate x, x=8. After 8 months the two gyms will cost the same.
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