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Mazyrski [523]
3 years ago
15

Please need help I will be MARKING as BRIANILIST. thank you so much. ​​

Mathematics
2 answers:
enyata [817]3 years ago
7 0

Answer:

C. 7

Step-by-step explanation:

Custodian has = 5 \frac{1}{4} gallons

Ever bookcase needs = \frac{3}{4} gallons

We'll just divide them

Bookcases to be painted = 5\frac{1}{4} / \frac{3}{4}

= \frac{21}{4}* \frac{4}{3}

= \frac{21}{3}

= 7

Svet_ta [14]3 years ago
5 0
The answer is 7 because u just keep adding 3/4 til ur even with 5 1/4
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Jose wants to make 6 qt. of a 54% saline solution by mixing together a 50% saline solution and a 60% saline solution. How much o
Liono4ka [1.6K]

Answer:

3.6 qt. and 2.4 qt respectively

Step-by-step explanation:

Let x be x% of 50% saline solution. And (100-x%) be the percentage of 60% saline solution.

54=x*(50/100)+(100-x)*(60/100), solving it we will get x=60%. So we need 3.6 qt. of 50% saline solution and 2.4 qt. of 60% saline solution

6 0
3 years ago
Percy Cod takes a walk around the perimeter path of his local park. The park is in the shape of a rectangle which is 400m wide a
lozanna [386]

Answer:

2800m

Step-by-step explanation:

Assumption:

Start point from which Percy Cod walks is "x"

If he walks around a perimeter that is the shape of a rectangle,

Length of area = L = 1000m

Width of area = W = 400m

Distance around the rectangle = D = 2 * (L + W)

D = 2 * (400+1000)

D = 2 * 1400

D = 2800m

4 0
3 years ago
A test subject is randomly selected for a pregnancy test. What is the probability of getting a subject who is not pregnant, give
Scilla [17]
First we need to choose from "Posivite Test" column:
\frac{12}{12+78} =  \frac{12}{90} = 0,1333(3) 
3 0
4 years ago
Read 2 more answers
Can two box plots have the same range and iqr and yet represent completely diff data.. explain
Mila [183]
Yes it is possible. Consider the following scenarios

Scenario A: 
Min = 5
Q1 = 10
Median = 12
Q3 = 18
Max = 22

The IQR is equal to the difference of Q3 and Q1
IQR = Q3-Q1 = 18-10 = 8
The range is the difference of the min and max
Range = Max - Min = 22 - 5 = 17

So in summary for scenario A, we have
IQR = 8
Range = 17

----------------------------------------------------------

Now consider another scenario, call it scenario B, where

Min = 100
Q1 = 102
Median = 105
Q3 = 110
Max = 117

I claim that the IQR and Range for scenario B is going to be the same as in Scenario A. Let's find out

IQR = Q3 - Q1 = 110 - 102 = 8
Range = Max - Min = 117 - 100 = 17

So
IQR = 8
Range = 17
which is identical to scenario A. 

-------------------------------------------------------------------------------

Scenario B has completely different data than scenario A, yet the IQR and Range are equal to scenario A's counterparts. This shows that it is possible to have 2 completely sets of data yet have the same IQR and range. 

The wrap up here, and the answer to the question, is "yes it is possible" with the explanation given above.
4 0
3 years ago
PLSSS HELP ME THIS WOULD MEAN A LOT :((
Svetlanka [38]

Answer:

Option D

Step-by-step explanation:

Increasing intervals represent  the inputs that make the graph  rise, or the intervals where the  function has a positive slope.  Decreasing intervals represent the inputs that make the graph  fall, or the intervals where the  function has a negative slope.

The inputs ( − values) that make () rise are

(-2,∞)

8 0
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