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Aleks [24]
3 years ago
12

Solve the following equation: 1/2x-8=-3

Mathematics
2 answers:
OlgaM077 [116]3 years ago
7 0

Answer:

10

Step-by-step explanation:

rjkz [21]3 years ago
4 0
Answer: 10

1. Multiply both sides of the equation by 2 so the fraction gets removed. x - 16 = -6
2. Add 16 on both sides. - 6 + 16 = 10.
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Answer: 3x-x+2=4


Step-by-step explanation:


4 0
3 years ago
Even would be helpful if you just gave me the equation to solve it and I can do the rest. mart had a sale for labor day on DVD's
erastova [34]

x - price of a video tape

y - price of a DVD

\left\{\begin{array}{ccc}2x+3y=134\\x+5y=179&|\text{subtract 5y from both sides}\end{array}\right\\\\\left\{\begin{array}{ccc}2x+3y=134\\x=179-5y&|\text{substitute to the first equation}\end{array}\right\\\\2(179-5y)+3y=134\qquad\text{use distributive property}\\\\(2)(179)+(2)(-5y)+3y=134\\\\358-10y+3y=134\qquad\text{subtract 358 from both sides}\\\\-7y=-224\qquad\text{divide both sides by (-7)}\\\\\boxed{y=32}\\\\\text{Put the value of y to the second equation}\\\\x=179-5(32)\\\\x=179-160\\\\\boxed{x=19}

<h3>Answer: video tape cost $19 and DVD cost $32.</h3>
6 0
3 years ago
(b) A department store has 7,000 charge accounts. The comptroller takes a random sample of 36 of
galben [10]

Answer:

a.0.8664

b. 0.23753

c. 0.15866

Step-by-step explanation:

The comptroller takes a random sample of 36 of the account balances and calculates the standard deviation to be N42.00. If the actual mean (1) of the account balances is N175.00, what is the probability that the sample mean would be between

a. N164.50 and N185.50?

b. greater than N180.00?

c. less than N168.00?

We solve the above question using z score formula

z = (x-μ)/σ/√n where

x is the raw score,

μ is the population mean = N175

σ is the population standard deviation = N42

n is random number of sample = 36

a. Between N164.50 and N185.50?

For x = N 164.50

z = 164.50 - 175/42 /√36

z = -1.5

Probability value from Z-Table:

P(x = 164.50) = 0.066807

For x = N185.50

z = 185.50 - 175/42 /√36

z =1.5

Probability value from Z-Table:

P(x=185.50) = 0.93319

Hence:

P(x = 185.50) - P(x =164.50)

= 0.93319 - 0.066807

= 0.866383

Approximately = 0.8664

b. greater than N180.00?

x > N 180

Hence:

z = 180 - 175/42 /√36

z = 5/42/6

z = 5/7

= 0.71429

Probability value from Z-Table:

P(x<180) = 0.76247

P(x>180) = 1 - P(x<180) = 0.23753

c. less than N168.00?

x < N168.

z = 168 - 175/42 /√36

z = -7/42/6

z = -7/7

z = -1

Probability value from Z-Table:

P(x<168) = 0.15866

4 0
3 years ago
Locate the point on the line segment between A(3,-5) and B(13,-15) given that the point is 4/5 of the way from A to B. Show your
LenKa [72]
(-2)+{-2)=4 given that point 4/5
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2 years ago
It takes Planet Netflix 24 hours to complete a full rotation. It takes Planet Hulu approximately 72 days, 16 hours, and 30 minut
sukhopar [10]

72*24=1728

1728+16=1744

now u have to deal with the 30 minutes. since its less than an hour, half actually itl be .5

1744.5


4 0
3 years ago
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