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Taya2010 [7]
2 years ago
8

-2(3 + c) = 16 what is the value of c is a solution to the equation

Mathematics
2 answers:
Sergio039 [100]2 years ago
5 0

Answer:

c=−11

Step-by-step explanation:

-2(3+c)=16

Divide both sides by -2

-2(3+c)/-2 = 16/-2

Simplify

3+c=-8

Subtract 3 from both sides

3+c-3=-8-3

Simplify

c=-11

lana [24]2 years ago
4 0

Answer:

-11

Step-by-step explanation:

Simplify

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Could anyone solve this equation
Ainat [17]
I)
8 - 3x = 23
-3x = 15
x = -5

ii)
5x - 16 = 34
5x = 50
x = 10

iii)
2 - 5x = -3
-5x = -5
x = 1
6 0
2 years ago
A taxi costs 1.65 for the first mile and 0.85 for each additional mile. Which equation could be solved to find the number x of a
diamong [38]
1.65 + 0.85x= $20
           0.85x=$18.35
                 x=21 10/17 
first you write the equation 
then you have to subtract 1.65 from the equation but you also have to subtract it from 20 
then you divide 0.85 from 0.85x and from the 18.35 left over from subtracting 1.65 from 20 
then you should get x=21 10/17 (simplified) but the decimal form is a ongoing fraction so you can just round it up to the nearest hundredth 
5 0
3 years ago
The useful life of a radial tire is normally distributed with a mean of 30,000 miles and a standard deviation of 5000 miles. The
otez555 [7]

Answer:

  empirical rule: 81.5%

  table or calculator: 81.9%

Step-by-step explanation:

The lower limit of the life range of interest has a z-score of ...

  z = (x -μ)/σ = (20,000 -30,000)/5,000 = -2

The upper limit has a z-score of ...

  z = (35,000 -30,000)/5,000 = 1

<u>Empirical rule solution</u>

The empirical rule tells you that 95% of the distribution lies within 2 standard deviations of the mean, so (100% -95%)/2 = 2.5% lie below z = -2. It also tells you 68% lie within 1 standard deviation of the mean, so (100% -68%)/2 = 16% lie above z = 1.

The fraction that lies within -2 to 1 standard deviations of the means is thus ...

  (100% -2.5% -16%) = 81.5%

The probability the tire has a life in the desired range is about 81.5%.

__

<u>Calculator solution</u>

A probability calculator for the Normal distribution tells you that ...

  P(-2 < z < 1) ≈ 0.8185946

The probability the tire has a life in the desired range is about 81.9%.

6 0
2 years ago
56 divided by 8\11 hellpppp
liraira [26]
Since this is a division problem with a fraction, you must multiply by its reciprocal.
56 x 11/8:
56 x 11= 616
New fraction is 616/8
This simplified is 77
Answer is 77
6 0
2 years ago
Liz was testing Jane on solving with equations. She gave Jane the
GuDViN [60]

Answer:

x/7+13=32

Step-by-step explanation:

work backward so subtract 13 from 32 and get 19 multiply it by 7 and get 133, to make sure your answers right just substitute 133 back into the equation

7 0
3 years ago
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