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yarga [219]
3 years ago
13

Santo made 4 less than twice as many cupcakes as Lynn write an equation to represent the number of cupcakes that santo made

Mathematics
2 answers:
nirvana33 [79]3 years ago
4 0
Shhhshshdskakdndnsbdrqqrjqrjqrkrakrkatjarharhah dbarnatnntanFnstn
Stmatjatjatjatnatjatj
kupik [55]3 years ago
3 0

number of cupcakes lynn made = x

number of cupcakes santo baked = 2x - 4

hope this helps and please mark me brainliesr. PLEASE!!!!

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Hailey received some cash for birthday. She spent $14.48 on a CD and donated $25.00 to charity. She put half of what was left in
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Work backwards.

After she put half of what she had left in, she had 17.76.

Multiply by 2:

17.76 * 2 = 35.52

Add 25:

35.52 + 25 = 60.52

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75

So she received $75 on her birthday.
8 0
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Can someone find x for these questions
Maurinko [17]

Answer:

8, 36, -12

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8 0
3 years ago
An automobile manufacturer has given its van a 47.2 miles/gallon (MPG) rating. An independent testing firm has been contracted t
7nadin3 [17]

Answer:

A

The  test statistics is  t  = -1.7

B

The  Null and  Alternative hypothesis are

      H_o  :  \mu = 47.2   and  H_a :  \mu \ne  47.2

Step-by-step explanation:

From the question we are told that

    The population mean is  \mu  =  47.2 miles/gallon(MPG)

    The sample size is  n =  250 \ van

     The  sample mean is  \= x  =  47.0

      The sample  standard deviation is  \sigma  =  1.9

      The level of significance is  \alpha  =  0.02

Given that the value which the manufacturer gave the automobile is  47.2 and  it is believed that this is not correct, then  

The  Null Hypothesis is  

        H_o  :  \mu = 47.2

The alternative Hypothesis  is  

        H_a :  \mu \ne  47.2

The test statistics can be mathematically evaluated as  

        t  =  \frac{\= x- \mu}{\frac{\sigma }{\sqrt{n} } }

substituting values

        t  =  \frac{\= 47- 47.2}{\frac{1.9 }{\sqrt{250} } }

       t  = -1.7

7 0
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