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Cerrena [4.2K]
3 years ago
14

1/2x-5=10 find and justify each step

Mathematics
2 answers:
Mrrafil [7]3 years ago
7 0
<span>1/2x-5=10 
Add 5 to both sides
1/2x= 15
Divide 1/2 on both sides so that the only thing remaining on the left side is the variable x.
Final Answer: x=30

To make sure that this is the answer:
1/2(30)=15
Multiply 1/2 by 30
Final Answer: 30=30 Which means that 30 is equal to x.</span>
sergeinik [125]3 years ago
5 0

im guessing youre soling for x so,

1/2x-5=10 ; first step add 5 to both sides

       +5=+5

1/2x=15  ; do get rid of the fraction and get x alone multiply both sides by 2

(2)1/2x=15(2) : the 2 is the recipicol of 1/2 cancelling it out.

x=30

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Hi please can you help me this is a new topic and I’m very confused
olchik [2.2K]

Answer: the large jar is cheaper

Step-by-step explanation:

If you divide the £1.54 by 440g and £1.26 by 340g, you'll find which one is cheaper per gram :

1.54/440 = 0.0035

1.26/340 = 0.0037

So, by comparing both prices/gram, you've found that the large jar is cheaper.

8 0
2 years ago
The sum of the 6th and seventh terms in a sequence of 12 numbers with a common difference is 16. What is the Sum of the number s
patriot [66]

Answer:

96

Step-by-step explanation:

commom difference = d

a₆ + a₇ = 16

a₅ + a₈ = (a₆ - d) + (a₇ + d) = a₆ + a₇ = 16

a₄ + a₉ = (a₆ - 2d) + (a₇ + 2d) = a₆ + a₇ = 16

Similarly,

a₃ + a₁₀ = 16, a₂ + a₁₁ = 16, a₁ + a₁₂ = 16

so

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6 0
1 year ago
Please help! What is the distance, rounded to the nearest tenth, between the points (0,5) and (8,0)? ___ units
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It’s 9.4 ...................
5 0
3 years ago
State the vertical asymptote of the rational function:<br> f(x) = ((x - 9)(x + 7)) / (x^2 - 4)
Sav [38]

Answer:

Vertical Asymptotes: x=-2,2

Horizontal Asymptotes: y=1

Step-by-step explanation:

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4 0
2 years ago
How to do this and whats the answer
Vinvika [58]

Answer:

(b) 36 degrees.

Step-by-step explanation:

K is the center of the circle so triangle KMN is isosceles and m < KMN = m KNM =  26 degrees ( base angles are equal)

So m <  LMK = m <LMN - m < KMN

= 98 - 26

= 72 degrees.

Now triangle LKM is also isosceles since K is the center of the circle so

m <  LKM = 180 - 2* 72

= 180 - 144

= 36 degrees.

4 0
2 years ago
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