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MAXImum [283]
3 years ago
12

a caterer makes 3 extra sandwiches for every 12 sandwiches a customer orders. The caterer makes a total of 120 sandwiches for a

customer. How many sandwiches did the customer order? (Not including the extra sandwiches)
Mathematics
1 answer:
dsp733 years ago
7 0

Answer:

96

Step-by-step explanation: 12+3=15   15x8= 120 then take out the 3 from the 15 and do 12x8 and it's 96.

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Solve 2x-7 = 3x-2(x+8) for x
kolezko [41]

Answer:

x = -11

Step-by-step explanation:

2x - 7 = 3x - 2x - 18

2x - 7 = x - 18

collect like terms

2x - x = 7 - 18

x = -11

5 0
1 year ago
A study of 35 golfers showed that their average score on a particular course was 92. The sample standard deviation was 5. We wan
svlad2 [7]

Answer:

t_{\alpha/2} = t_{0.05/2} = t_{0.025} = 2.0322

Step-by-step explanation:

We have a sample of size n = 35, \bar{x} = 92 and s = 5. As we want to construct a 95% confidence interval to estimate the value of the true population mean \mu, we should use the pivotal quantity given by T = \frac{\bar{X}-\mu}{S/\sqrt{n}} which comes from the t distribution with n - 1 = 35 - 1 = 34 degrees of freedom. Besides we should use the t-value t_{\alpha/2} = t_{0.05/2} = t_{0.025} = 2.0322, i.e., regarding the t-distribution with 34 degrees of freedom, we have an area of 0.025 above 2.0322 and below the probability density function. The rationale behind this is that P(-2.0322\leq T\leq 2.0322) = 0.95 because of the simmetry of the t distribution.

7 0
3 years ago
Given this is an odd number function, which of the following are equal to O(9)
Bumek [7]
It is 9 because I think It is equaltion to 9
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3 years ago
Parallel to y=2÷3x+6<br> Passes through (6,7)
erma4kov [3.2K]

Answer:

Step-by-step explanation:

Parallel to y=2÷3x+6

Passes through (6,7)

slope is (2/3)

Solve for when y is 7 and x is 6.

take out the + 6 at the end because it doesnt change the slope. replace with b. (y=mx+b)

replace y and x.

7 = (2/3)(6)+b

solve for b and then put it back into the equatio and make 6 and 7 into x and y again.

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Answer:

Step-by-step explanation:

SOLVE FOR X

x∈R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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8 0
3 years ago
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