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Cerrena [4.2K]
4 years ago
12

What would 4(2+x)=18-x equal

Mathematics
1 answer:
matrenka [14]4 years ago
8 0

Answer:

x=2

Step-by-step explanation:

4( 2+x) = 18-x

8 + 4x = 18 - x

4x+x = 18-8

5x= 10

x=2

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The difference of two numbers is 19. Their sum is 27. Find the numbers
klemol [59]

Answer:

23 and 4

Step-by-step explanation:

x-y=19

x+y=27

x=19+y

(19+y)+y=27

19+2y=27

2y=8

y=4

x-4=19

x=23

23+4=27

23-4=19

6 0
3 years ago
Tate purchased a pair of slippers on the internet for a retail price of $16. After 6.5% sales tax, how much were the slippers?
anyanavicka [17]

Answer:

$15.02

Step-by-step explanation:

Given data

Total cost= $16

tax= 6.5%

let the actual cost of the slippers be x

6.5/100*x+ x= 16

0.065x+x= 16

1.065x= 16

divide both sides by 1.065

x= 16/1.065

x= 15.02

Hence the actual cost of the slippers is $15.02

7 0
3 years ago
What expression is factor of 6x^3-13x^2-28x
Harrizon [31]
The answer is x(2x-7)(3x+4)

Hope this helps!
8 0
3 years ago
Read 2 more answers
How many rulers of 12-inches are needed to measure a door awnser
Fudgin [204]
<span>the dimensions of a door are variable, for effects of this problem we will assume a door height of 210 cm and a door width of 80 cm

Step 1
</span><span>convert the dimensions of the door in cm to inches
</span>we know that
1 in-------------> 2.54 cm
X----------------> 210 cm
X=210/2.54=82.67 in (height)

1 in-------------> 2.54 cm
X----------------> 80 cm
X=80/2.54=31.50 in (width)

the dimensions of a door are 31.50 in x 82.67 in

Step 2
calculate the amount of rules of 12-inches necessary to measure the height of the door
82.67 in (height)
if one rule-------------> measure 12 in
X----------------------> 82.67 in
X=82.67/12=6.8-----------> 7 rules

Step 3
calculate the amount of rules of 12-inches necessary to measure the width of the door
31.50 in (width)
if one rule-------------> measure 12 in
X----------------------> 31.50 in
X=31.50/12=6.8-----------> 2.62 ------------> 3 rules

the answer is 
to measure a door are needed about 7 rules of 12-inches for the height and about 3 rules of 12-inches for the width
7 0
3 years ago
Evaluate the three cube roots of -1​
EastWind [94]

Step-by-step explanation:

³√-1

-1

..................

8 0
3 years ago
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