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iogann1982 [59]
4 years ago
7

-7 - 17 = 2x + 10 Solve for x.

Mathematics
2 answers:
qwelly [4]4 years ago
8 0
X=-7 if that isn’t the right answer then idk what is
rjkz [21]4 years ago
6 0

Answer:

x= -17

Step-by-step explanation:

-7-17=2x+10

subtract -7 to -17 but since both are negatives you do addition.

-24=2x+10

add 24 from both sides and put 2x as a negative

-2x=34

divide both sides by -2

------------

x= -17

------------

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Andre and Priya are tracking the number of steps they walk. Andre records that he can walk 6000 steps in 50 minutes. Priya write
Simora [160]

Andre walks more steps than Priya.

To find out who many steps each one of them walks in a week, we have to carry out different calculations starting with Andre.

                 Calculation for number of steps taken by Andre

Andre takes 6000 steps in 50 minutes. We can use this information to scale up his number of steps over a period of 5 hours(300 minutes.). The quickest way to do this calculation, is to notice that there are 6 different 50 minute segments in 300 minutes. This means that the number of steps taken in 5 hours is 6\times 6000=36000 steps.

Another way to do this calculations is to use proportions

6000=50\\x=300\\=>50x=300\times6000=1800000\\=>x=36000.

Andre takes 36000 steps that week.

                 Calculation for number of steps taken by Priya

The number of steps taken by Priya is given by the is given by the function y=118x where x is the time in minutes. Priya walks for a total of 5 hours or 300 minutes. We calculate the number of steps she takes as shown below,

y=118x\\y=118\times 300\\y=35400.

Priya takes a total of 35400 steps.

Since  36000 steps is greater than 35400 steps, we conclude that Andre walks more steps than Priya.

3 0
3 years ago
Assume that the readings on the thermometers are normally distributed with a mean of 0 degrees0° and standard deviation of 1.00d
Alex

Answer:

The diagram is attached below.

Step-by-step explanation:

A normal distribution mean 0 and standard deviation 1 is known as the standard normal distribution.

So, the readings on the thermometers (denoted by <em>Z</em>) follows N (0, 1).

It is provided that 2.7​% of the thermometers are rejected because they have readings that are too high and 2.7​% are rejected because they have readings that are too low.

This implies that:

P(Zz)=0.027

The value of <em>z</em> associated to both these probabilities are:

<em>z</em> = 1.93.

That is,

P(Z1.93)=0.027

*Use a <em>z</em>-table.

The diagram for the two readings that are cutoff values separating the rejected thermometers from the others is attached below.

6 0
4 years ago
Which of the following represents the year when the state will reach and surpass a population of 1,800,000?
sineoko [7]
Since p is in thousands, let p = 1800.

T(1800) = -496 + 70.17ln(1800)
T(1800) \approx 29.962...
1995 + T(1800) \approx 2025

So, in the year 2025, USA will surpass 1 800 000 in the population.
8 0
3 years ago
A car travels at an average speed of 50 km/h for 1.5 hours. How far did the car travel in km?
boyakko [2]

Answer:

75 km

Step-by-step explanation:

(50km/h)(1.5h) =<em> 75km</em>

7 0
2 years ago
What is the simplified form of 3 over 4x plus 3 + 21 over 8 x squared plus 26x plus 15
arsen [322]
This is the concept of algebra, we are required to add up the terms given above, here we shall have:
3/(4x)+21/(8x)+26x+15
when we sum up we get:
27/(8x)+26x+15
=(27+208x^2+120x)/(8x)
The simplified form of the summation of the terms is:
(27+208x^2+120x)/(8x)
4 0
3 years ago
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