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Westkost [7]
3 years ago
14

3(2x+4)=-18 What is x and how do you solve

Mathematics
2 answers:
devlian [24]3 years ago
4 0

Answer:

x=1

Step-by-step explanation:

divide by 3 and then -4 and then divide by 2

Mademuasel [1]3 years ago
4 0

Answer:

x=-5

Step-by-step explanation:

first you use distributive property:

3(2x+4)=-18

6x+12=-18

then you subtract your 12 from the -18

when you do that since you have 2 negatives you add

6x=-30

divide 6 by -30

x=-5

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The dimensions of the base of Box 1 are x by 3x.


The base area of Box 1 is:

3x^2

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3 years ago
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50 POINTS!!<br> What is the sum of the first four composite numbers?<br> 19<br> 20<br> 27<br> 28
Nataliya [291]

its 27

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3 years ago
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Consider a manufacturing process called as turning (a type of machining process) that is used to manufacture cylindrical metal s
Sav [38]

Answer: 86.64%

Step-by-step explanation:

Let x be a random variable that represents the diameter of metal samples.

Given : Population mean : \mu=10

Standard deviation: s=0.50

Specified tolerance on the diameter is 0.75 mm.

i.e. range of diameter = 10-0.75< x <10+0.75 = 9.25< x< 10.75

Formula to find the z-score corresponds to x: z=\dfrac{x-\mu}{s}

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6 0
3 years ago
The sum of two numbers is 53. if twice the first number minus three times the second number is 26, find both numbers.
EastWind [94]
Make an equation system based on the problem
eg. a is the first number and b is the seond number
An equation for "<span>The sum of two numbers is 53" is
</span>⇒ a + b = 53
An equation for "<span>twice the first number minus three times the second number is 26"
</span>⇒ 2a - 3b = 26
<span>
Solve the equations by elimination and subtitution method
Eliminate a to find the value of b
a + b = 53   (multiplied by 2)
2a - 3b = 26
--------------------------------------
2a + 2b = 106
2a -  3b = 26
------------------- - (substract)
       5b = 80
         b = 80/5
         b = 16

Subtitute the value of b to one of the equations
a + b = 53
a + 16 = 53
a = 53 - 16
a = 37

The numbers are 16 and 37</span>
6 0
3 years ago
Maya made $324 for 18 hours of work. At the same rate how many hours would she have to work to make $126
Illusion [34]

Answer:7

Step-by-step explanation:

324/18 hours = 18$ per hour

126/18$=7 hours

4 0
3 years ago
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