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DaniilM [7]
3 years ago
11

the sum of a number and 5,multiplied by 10 i don't know how to translate a verbal equation to an algebradic expression

Mathematics
2 answers:
mel-nik [20]3 years ago
6 0
10(x+5) this is the answer
Furkat [3]3 years ago
5 0
Let the number be x.

Sum of the number and 5 is = (x + 5)

Multiplied by 10 = 10*(x + 5)

So it translates to 10*(x + 5)

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The dollar value v (t) of a certain car model that is t years old is given by the following exponential function.
galina1969 [7]

Answer:

$ 3820

Step-by-step explanation:

When the car is new, it is 0 year old. It means, t = 0

Initial value = 26,000 (0.84)^0 = 26,000(1)

Initial value = $ 26000

Similarly, when car is 11 year old, t = 11

=> 26000(0.84)¹¹ = 26000(0.14691)

≈ $ 3819.842

≈ $ 3820 (round to near ten)

6 0
2 years ago
The manager of a local nightclub has recently surveyed a random sample of 280 customers of the club. She would now like to deter
Lunna [17]

Answer:

z = \frac{35.6-35}{\frac{5}{\sqrt{280}}}= 2.007

p_v = P(z>2.007) = 0.0224

Since the p value is lower than the significance level given of 0.05 we have enough evidence to reject the null hypothesis on this case. And the best conclusion for this case is:

We (reject) the null hypothesis. That means that we (found) evidence to support the alternative.

Step-by-step explanation:

We have the following info given:

\bar X = 35.6 represent the sampel mean for the age of customers

\sigma = 5 represent the population standard deviation

n = 280 represent the sample size selected

We want to test if the mean age of her customers is over 35 so then the system of hypothesis for this case are:

Null hypothesis: \mu \leq 35

Alternative hypothesis \mu >35

The statistic for this case is given by:

z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And replacing the data given we got:

z = \frac{35.6-35}{\frac{5}{\sqrt{280}}}= 2.007

We can calculate the p value since we are conducting a right tailed test like this:

p_v = P(z>2.007) = 0.0224

Since the p value is lower than the significance level given of 0.05 we have enough evidence to reject the null hypothesis on this case. And the best conclusion for this case is:

We (reject) the null hypothesis. That means that we (found) evidence to support the alternative.

5 0
3 years ago
Which equation represents a line that has a slope of 7 and passes through the point of (2,6)?
Strike441 [17]

Answer:

y=7x -8

Step-by-step explanation:

I used desmos but you can also use an equation. I'm sure you're teacher taught you how.

7 0
2 years ago
Read 2 more answers
I'm confused about this, please help!
Fofino [41]
D angle CDE
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7 0
3 years ago
Help me with this question please
irinina [24]

Answer:

i cant see it can you explain it

Step-by-step explanation:

5 0
3 years ago
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