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Amanda [17]
3 years ago
13

A pharmacy claims the average medication cost $32 but it could differ as much as $8. Write and solve an absolute value inequalit

y to determine the range of medication costs at this pharmacy.
Mathematics
1 answer:
ExtremeBDS [4]3 years ago
6 0

So,

We can tell that the most expensive medication costs $40 and the cheapest costs $24.  Thus, only options A and C are left. To see which inequality is true, test a value, such as $30, in the equation in option C.

|30 - 32| ≤ 8

|-2| ≤ 8

2 ≤ 8

            Hope this helps! :)

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Write an equation in point-slope form of the line that passes through the point (5, 1) and has a slope of -3
bogdanovich [222]

Answer:

<h2>         y - 1 = -3(x - 5)</h2>

Step-by-step explanation:

An equation in point-slope form of the line that passes through the point (<em>x₁,y₁</em>) and has a slope of <em>m</em>:

y - y₁ = m(x - x₁)

m = -3

(5, 1)     ⇒       x₁ = 5,  y₁ = 1

Therefore:

y - 1 = -3(x - 5)

4 0
3 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
zhannawk [14.2K]

Answer:

y=27;y=−42

Step-by-step explanation:

33−y=6;63+y=21

y=27;y=−42

I hope this helps!

3 0
3 years ago
Read 2 more answers
|<br> Evaluate 5c + cd when c<br> --<br> and d = 15.
Annette [7]
If both C and D equal 15 then the answer is 105.
6 0
2 years ago
Margo can purchase tile at a store for $0.89 per tile and rent a tile saw for $45. At another store she can borrow the tile saw
umka21 [38]

Answer:

She must buy 90 tiles for the cost to be the same at both stores

Step-by-step explanation:

Let x be the no. of tiles bought for the cost to be the same at both stores

Margo can purchase tile at a store for $0.89 per tile at shop 1

Cost of x tiles =0.89x

She rent a tile saw for $45.

So, total cost at Store 1 = 0.89x+45

At another store she can borrow the tile saw for free if she buys tiles there for $1.39 per tile.

So, cost of 1 tile = 1.39

Cost of x tiles = 1.39x

ATQ

0.89x+45=1.39x

45=1.39x-0.89x

45=0.5x

\frac{45}{0.5}=x

90=x

Hence She must buy 90 tiles for the cost to be the same at both stores

3 0
3 years ago
The data list shows the scores of ten students in Mr. Smith's math class. 61, 67, 81, 83, 87, 88, 89, 90, 98, 100 What is the st
anzhelika [568]

Sample standard deviation

Mean of data = 84.4

Calculate deviations from the mean = 23.4, 17.8, 3.4, 1.4, -2.6, -3.6, -4.6, -5.6, -13.6 and -15.6

Squaring these deviations; we get 547.56, 316.84, 11.56, 1.96, 6.76, 12.96, 21.15, 31.36, 184.96, 243.36

Adding these we get 1378.47

As its a sample Std Dev we divide by 10 - 1 = 9. For the popklation Std Dev we divide by the number of scores (10).

Std Deviation for sample = sqrt ( 1378.47 / 9) = 12.4 to nearest tenth (answer)

Population Std Dev = sqrt (1378.47 / 10) = 11.7 answer

Theres a lot of arithmetic there so hope i haven't slipped up anywhere!

6 0
3 years ago
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