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3 years ago

2a + 4c = 38.00 solve for c

Mathematics

2 answers:

Dominik [7]3 years ago

5 0

Step-by-step explanation:

2 (a+2c)=38

a+2c=19

c=(19-a)/2

irakobra [83]3 years ago

4 0

Answer:

c = 19/2 - 1/2a

Step-by-step explanation:

Step 1: Write equation

2a + 4c = 38.00

Step 2: Solve for c

Subtract 2a on both sides: 4c = 38 - 2a

Divide both sides by 4: c = 19/2 - 1/2a

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4 years ago

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4 years ago

Read 2 more answers

3 hrs 20 minutes- 1 hr 48 minutes

Nana76 [90]

You first convert everything to minutes

3hrs= 60x3=180mins

1hr= 60x1=60mins

then you add 20 to 180

200

and you also add 48 to 60

104

200-104=

Then you convert to hrs and mins

96-60=36

1hr 36mins

5 0

3 years ago

I neeeeeeeeeeeeeeeeeeed help

iris [78.8K]

5.8 * 10^7

2.5* 10 ^ -3

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3 years ago

Announcements for 84 upcoming engineering conferences were randomly picked from a stack of IEEE Spectrum magazines. The mean len

Marina86 [1]

Answer:

Step-by-step explanation:

Hello!

You need to construct a 95% CI for the population mean of the length of engineering conferences.

The variable has a normal distribution.

The information given is:

n= 84

x[bar]= 3.94

δ= 1.28

The formula for the Confidence interval is:

x[bar]± $Z_{1-\alpha/2}$ *(δ/n)

Lower bound(Lb): 3.698

Upper bound(Ub): 4.182

Error bound: (Ub - Lb)/2 = (4.182-3.698)/2 = 0.242

I hope it helps!

6 0

4 years ago