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BlackZzzverrR [31]
3 years ago
6

Paul is saving for a video game. It costs $70, including tax. He has already saved $35. How much more does he need to save?

Mathematics
2 answers:
11111nata11111 [884]3 years ago
8 0

Answer:

the answer is $35

Step-by-step explanation:

70 - 35 = 35

MrMuchimi3 years ago
7 0

Answer:

35

Step-by-step explanation:

70 takeaway 35 is 35 which is what is left over.

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The equation is not true because
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2 years ago
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It is believed that a stock price for a particular company will grow at a rate of $5 per week with a standard deviation of $1. A
IgorLugansk [536]

Answer:

Step-by-step explanation:

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

µ = $5

For the alternative hypothesis,

µ < $5

number of samples taken = 10

Sample mean, x = (4 + 3 + 2 + 3 + 1 + 7 + 2 + 1 + 1 + 2)/10 = 2.6

To determine sample standard deviation, s

s = √(summation(x - mean)/n

n = 12

Summation(x - mean) = (4 - 2.6)^2 + (3 - 2.6)^2 + (2 - 2.6)^2 + (3 - 2.6)^2 + (1 - 2.6)^2 + (7 - 2.6)^2 + (2 - 2.6)^2 + (1 - 2.6)^2 + (1 - 2.6)^2 + (2 - 2.6)^2 = 30.4

s = √30.4/10 = 1.74

Since the number of samples is 10 and no population standard deviation is given, the distribution is a student's t.

Since n = 10,

Degrees of freedom, df = n - 1 = 10 - 1 = 9

t = (x - µ)/(s/√n)

Where

x = sample mean = 2.6

µ = population mean = 5

s = samples standard deviation = 1.74

t = (2.6 - 5)/(1.74/√10) = - 4.36

We would determine the p value at alpha = 0.05. using the t test calculator. It becomes

p = 0.000912

7 0
3 years ago
Hold on guys my sister needs an answer I am on a call pls help
Alex73 [517]

Answer:

d=27

Step-by-step explanation:

14+8 = 22

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AveGali [126]
Y = 4x - 3
y = mx + b
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(x,y) = (0,3)
(x,y) = (1,1) - substitute in ori equation

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3 years ago
Can anyone help please with 6 and 7 I’m in desperate need of can someone help please and God bless
saw5 [17]
6.) 9
5(9)+18=63
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7.) IF=HF
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