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Travka [436]
3 years ago
15

-x+4x-9=8x+6 what’s X?

Mathematics
2 answers:
Xelga [282]3 years ago
7 0

Answer:

X= -3

Step-by-step explanation:

3x-9=8x+6

3x-8x=6=9

-5x=15

x=-3

OverLord2011 [107]3 years ago
5 0

Answer:

x = -3

Step-by-step explanation:

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Karen bought a 2300 blower she made a 450 down payment and monthly payments of 93.50 for the next 3 years how much interest did
ElenaW [278]
I did 
2300-450=1850

93.50x12=1122
1122x3=3366
3366-1850= 1516

1516 should be the answer

5 0
4 years ago
10. Error Analysis A student draws a triangle with a perimeter 36 cm. The
Tasya [4]

Answer:

see the explanation

Step-by-step explanation:

we know that

The <u>Triangle Inequality Theorem</u> states that the sum of any 2 sides of a triangle must be greater than the measure of the third side

In this problem

If the perimeter of triangle is equal to 36 cm

The longest side can't be equal to 18 cm

The student is incorrect

Because if the longest side is equal to 18 cm, and the perimeter is equal to 36 cm, then the sum of the other two sides is equal to 18 cm

and

Applying the triangle inequality theorem

Let

c  -----> the longest side

a and b the other two sides

we have that

if c=18 cm

a+b > c

a+b > 18 cm

therefore

If the longest side is 18 cm, the sum of the other two sides must be greater than 18 cm and the perimeter will be greater than 36 cm

4 0
3 years ago
What is the lcm of 6 and 16?
Lilit [14]
Lcm stands for Least common multiple

The lcm of these numbers is 48

6 - 6, 12, 18, 24, 30, 36, 42, [ 48]

16 - 16, 32, [48 ]

Therefore 48 is the lcm because it is the lowest number 6 and 16 have in common
8 0
4 years ago
Read 2 more answers
If f(x) = 3x-4, and g(x) = 2f(x)-1, what is g(5)?
kvasek [131]

Answer:

g(5) = 21

Step-by-step explanation:

Substituting f(x) into g(x):

g(x) = 2(3x-4) - 1

= 6x - 8 - 1

= 6x - 9

Seeing that g(x) = 6x-9,

g(5) = 6(5) - 9

= 30 - 9

= 21

<em>Feel free to mark this as brainliest! :D</em>

6 0
3 years ago
Mickey used these calculations to find how much he would spend on 7 cartons of eggs, if 12 cartons of eggs cost $22.20. Describe
Nadusha1986 [10]

Answer:Mickey set up the equivalent rate wrong. The cartons of eggs should be in the denominator, because you need to find the unit price for 1 carton of eggs

Step-by-step explanation:

9 0
3 years ago
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