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In-s [12.5K]
4 years ago
13

A flower arrangement was marked down 12.5%. if the flowers originally cost $20, what is the amount of the discount?

Mathematics
2 answers:
WINSTONCH [101]4 years ago
7 0
The correct answer would be B :)
inessss [21]4 years ago
7 0
The correct answer is actually D 
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4 - y over 5 = 2 - 2y over 8<br> I’m just really tired lol (and lazy)
Travka [436]

Answer:

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4 0
3 years ago
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A certain type of cell can double itself every hour, because it has a growth factor of 2. A laboratory has 15 of these cells.
harina [27]

Answer:

Second one

Step-by-step explanation:

Second choice.

Second one is growing by a factor of 2 because the exponent on 2 tells me that 2 is is being repeated as a factor.

If x=0 then 15*2^0=15(1)=15 which is what we have initially.

6 0
3 years ago
Solve for x: −3|x + 7| = −12
kykrilka [37]
-3Ix + 7I = -12              (divide -3 from each side)

Ix + 7I = -12/3

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4 0
4 years ago
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foot locker uses sales per square foot as a measure of store productivity last year the mean annual sales per square foot was 39
lord [1]

Answer:

There is a 82% probability that th esample mean annual sales per square foot is at least $384.

Step-by-step explanation:

We have a population with mean 390 and standard deviation 45.83.

Samples of size n=49 are taken.

The parameters of the sampling distribution are:

\mu_s=\mu=390\\\\ \sigma_s=\dfrac{\sigma}{\sqrt{n}}=\dfrac{45.83}{\sqrt{49}}=\dfrac{45.83}{7}=6.547

First, we have to calculate the z-score that satisfies:

P(z>z^*)=0.82

This z-score, looked up in a standard normal distribution table, is z=-0.915.

Then, we can calculate the sample mean as:

M=\mu_s+z\cdot\sigma_s=390+(-0.915)\cdot 6.547=390-6=384

There is a 82% probability that th esample mean annual sales per square foot is at least $384.

3 0
3 years ago
what is an equation in point-slope form of the line that passes through the given point and with the given slope m (-5,1);m=4
zalisa [80]

Equation for line: y=mx+b where m is the slope and b is the y-intercept

We have the slope. We just need to find the y-intercept. Plug in the point and the slope and solve for b.

y=mx+b

1=4(-5)+b

b=21

Answer: y=4x+21

6 0
3 years ago
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