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Olegator [25]
3 years ago
8

If -1/2x+5=1 find the value of 8x

Mathematics
1 answer:
Kipish [7]3 years ago
5 0

Answer:

\huge\boxed{8x=64}

Step-by-step explanation:

-\dfrac{1}{2}x+5=1\qquad|\text{subtract 5 from both sides}\\\\-\dfrac{1}{2}x+5-5=1-5\\\\-\dfrac{1}{2}x=-4\qquad|\text{multiply both sides by (-2)}\\\\(-2\!\!\!\!\diagup)\cdot\left(-\dfrac{1}{2\!\!\!\!\diagup}x\right)=(-2)(-4)\\\\x=8\qquad|\text{multiply both sides by 8}\\\\8\cdot x=8\cdot 8\\\\8x=64

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Can somebody please help?
kari74 [83]

Step-by-step explanation:

√121 - √-192 - √4 + √-48

= 11 - 192i - 2 + 48i

= 9 - 144i

= 9(1 - 16i).

6 0
3 years ago
What's the answer to this math problem
GarryVolchara [31]
Total number of marbles:
75 + 50 + 100 + 25 = 250

Probability of selecting a red marble:
25/250 (since 25 out of 250 marbles are red)
Since the top and bottom of this fraction are both divisible by 25, we can go ahead and divide them both by 25, simplifying to 1/10.

Probability of selecting a green marble:
50/250
Simplifies to 2/10
Simplifies to 1/5.

Probability of selecting a blue or orange marble
(75+100)/250
175/250
Simplifies to 7/10.

To find the probability that each event occurs in order, simply multiply them all together.

\frac{1}{10}\times\frac{1}{5}\times\frac{7}{10}=\frac{1\times1\times7}{10\times5\times10}=\boxed{\frac{7}{500}}
4 0
3 years ago
Read 2 more answers
Find the equaton of the line passing through the points (2,11) and (-8, -19) y= ?x ?​
antoniya [11.8K]

Find the slope:

(-19 - 11) / (-8 - 2) = (-30/-10) = 3

Find the y intercept:

y = mx + b

11 = 3(2) + b

b= 5

So equation is:

y = 3x + 5

5 0
2 years ago
A camera has a list price of $579.99 before tax. If the sales tax rate is 7.25%, find the total cost of the camera with sales ta
dezoksy [38]

Answer:

519.99(.0825) = 42.899

519.99 + 42.899 = $562.89

Step-by-step explanation:

3 0
2 years ago
SOMEONE HELP ME PLEASE
IgorC [24]

A standard die has numbers = 1,2,3,4,5 and 6

Total outcomes = 6

P = Number of outcomes/Total Outcomes

Even and less than 4 = 1,2,3,4 and 6

P = 5/6

Answered by GauthMath if you like please click thanks and comment thanks

3 0
3 years ago
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