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2 years ago

10

A store pays $56 for a GPS navigation system. The markup is 25%.Find the selling price.

1 answer:

Phantasy [73]2 years ago

3 0

$70

.25(56) = 14
14 + 56= $70

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146, 74, 38, 20, ? what would the next number be in this sequence?

Anuta_ua [19.1K]

Looking at the numbers, we can see that the differences are 72, 36, and 18. Notice that they are each factors of the next by the same constant 2.

18 * 2 = 36
36 * 2 = 72

There, it means that 18/2 will be subtracted from 20.

20 - 18/2
= 20 - 9
= 11

The next number in the sequence would be 11. Hope this helps!

3 0

3 years ago

Pete is a politician. He claims that 32% of the households in his district have total household incomes below the poverty level.

victus00 [196]

Answer:

$z=\frac{0.3867 -0.32}{\sqrt{\frac{0.32(1-0.32)}{225}}}=2.145$

For a bilateral test the p value would be:

$p_v =2*P(z>2.145)=0.0320$

Step-by-step explanation:

Information given

n=225 represent the sample selected

X=87 represent the households with incomes below the poverty level

$\hat p=\frac{87}{225}=0.3867$ estimated proportion of households with incomes below the poverty level

$p_o=0.32$ is the value that we want to test

z would represent the statistic

$p_v$ represent the p value

System of hypothesis

We want to check if the true proportion is equal to 0.32 or not.:

Null hypothesis: $p=0.32$

Alternative hypothesis: $p \neq 0.32$

The statistic is given bY:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing we got:

$z=\frac{0.3867 -0.32}{\sqrt{\frac{0.32(1-0.32)}{225}}}=2.145$

For a bilateral test the p value would be:

$p_v =2*P(z>2.145)=0.0320$

4 0

3 years ago

Will give Brainliest if answer is correct!

Kryger [21]

Answer:

a|| b then

<6=<4=<2=146

7 0

2 years ago

Help me please I really don’t understand

barxatty [35]

Number 1 is C.
Number 2 is C.
Did you need all of them?

7 0

3 years ago

Five times a number is greater then 25

Tems11 [23]

The answer might be 5 times 7 that is 35

6 0

2 years ago

Read 2 more answers