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RSB [31]
3 years ago
8

SOMEONE PLEASE HELP ME!!! ILL GIVE YOU BRAINLIST <3 PLEASE THANK YOU

Mathematics
1 answer:
Kay [80]3 years ago
3 0

<u>Step by Step Explanation:</u>

16. x - 4 = 4

Isolate the variable (x). Note the equal sign, what you do to one side, you do to the other. Add 4 to both sides:

x - 4 (+4) = 4 (+4)

x = 4 + 4

x = 8

17. a/4 = 4

Isolate the variable (a). Note the equal sign, what you do to one side, you do to the other. Multiply 4 to both sides:

(a/4)(4) = (4)(4)

a = (4)(4)

a = 16

18. y * 20 = 30

Isolate the variable (y). Note the equal sign, what you do to one side, you do to the other. Divide 20 from both sides.

(y *20)/20 = (30)/20

y = 30/20

y = 3/2 or 1.5

19. x/5 = 20

Isolate the variable (x). Note the equal sign, what you do to one side, you do to the other. Multiply 5 to both sides

(x/5)(5) = (20)(5)

x = (20)(5)

x = 100

~

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Expand then simplify 2(x-5)+2x
poizon [28]
2x-10+2x

answer is 10 because the the 2xs cancel each other out
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3 years ago
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PLEASE ANSWER!!! THIS IS EASY BUT I AM DUMB SO I DONT GET IT!!! HALPPPP. ......marc bought a new video game for $50. After beati
viva [34]

Answer: $27.50

Step-by-step explanation:

45% = 0.45

$50 × 0.45 = $22.50

$50 - $22.50 = $27.50

Don't worry because I be the dumb too. Me could have been using 0.55 as multiplier but am too dumb so made meself get extra step

Lol

You could have also done:

$50 × 0.55 = $27.50

3 0
4 years ago
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1. Given these 2 points, what is the slope between these 2 points?
strojnjashka [21]

Answer:

2 over 8

Step-by-step explanation:

8 0
3 years ago
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PLZ HELP! 20 POINTS!!
ivann1987 [24]
Given list of values
A = {23, 34, 19, 10, 9, 20, 40, 43, 28, 29, 36, 13, 27, 23, 36, 37, 7}

Sort list A to get list B
B = {7, 9, 10, 13, 19, 20, 23, 23, 27, 28, 29, 34, 36, 36, 37, 40, 43}

The smallest value is 7, so the min is 7
The largest value is 43, so the max is 43

Look through list B to find the middle-most value. What you can do is cross off each pair of outer values (see figure 1 in the attached images) until you are left with the middle value
Or you can note how there are 17 values so the median is at slot 9 (there are 8 values below the median; 8 values above the median; the 8 is from 17/2 = 8.5)

Once you know the median is 27, we split the list B into two parts
The first part, we'll call it L for lower half is
L = {7, 9, 10, 13, 19, 20, 23, 23}
which is the list of all values lower or smaller than the median.
The median of list L is 16 because its the midway point between 13 and 19. We can compute (13+19)/2 = 32/2 = 16. This is the value of Q1

The upper half U is
U = {28, 29, 34, 36, 36, 37, 40, 43}
this list shows all the values larger than the median.
The value of Q3 is 36. We find the midpoint of 36 and 36 which is just 36.
The value of Q3 is the same as the median of list U

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

Five Number Summary:
Min = 7
Q1 = 16
Median = 27
Q3 = 36
Max = 43

This five number summary is then used to construct the box-and-whisker plot. See figure 2 in the attached images. The diagram shows how each piece of the boxplot is put together (eg: the left edge of the box is the value of Q1). 

5 0
3 years ago
What property is 5+0=n
andre [41]

Assuming that you mean to put n instead of 5, this is demonstrating The Identity Property.


The identity property is the property that states that by adding 0 to a number, you don't change the value. For example, 510 + 0 = 510.

4 0
3 years ago
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