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3 years ago

-2(7 – y) +4= -4 How do you solve this

Mathematics

2 answers:

finlep [7]3 years ago

5 0

The answer to this question is y=3

geniusboy [140]3 years ago

4 0

-2(7-y)+4=4
-14+2y+4=4 Distribute
-10+2y=4 Combine like terms
2y=14 Get the variable on one side
7=y Get the variable alone

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frez [133]

Answer:

Yes.

Step-by-step explanation:

To find the point of intersection we solve the system:

y = x + 3

y = -x + 7 Subtract:

0 = 2x - 4

2x = 4

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She is correct.

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2 years ago

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3 years ago

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Step-by-step explanation:

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3 years ago

Find the 44th percentile, P44, from the following data! pls help

irina [24]

Answer:

$P_{44} = 29.9$

Step-by-step Explanation:

The 44th percentile, $P_{44}$ , of the given data can be calculated using the kth formula for percentile given as:

$i = \frac{k}{100}(n + 1)$

where,

i = the ranking or the position of the percentile = ?

k = the percentile = 44

n = total number of the given data values = 23

Plug in the values into the formula to find "i"

$i = \frac{44}{100}(23 + 1)$

$i = \frac{44}{100}(24)$

$i = \frac{1,056}{100}$

$i = 10.56$

Since "I", 10.56, is not an integer, round the number down, and round it up to the nearest integer, then look for the position each occupy in the ordered data set, and find their average.

Thus,

$i_{down} = 10.56 = 10$