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r-ruslan [8.4K]
3 years ago
9

What number makes this statement true 7x-7=2x+8

Mathematics
2 answers:
Nostrana [21]3 years ago
8 0
7x - 2x = 8+7
5x = 15
x = 3
erica [24]3 years ago
5 0

Answer:

Step-by-step explanation:

X=5/3

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Please Show Your Work!!
Vedmedyk [2.9K]

Answer:

No

Step-by-step explanation:

If you turn it sideways it won’t fit through because the table is 86 inches in diameter and the height is only 80 inches high.

8 0
3 years ago
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Travelling 900 km by rail costs of Rs 280. What would be the fare for a journey of 360 km when a person travels by the same clas
anyanavicka [17]

Answer:

Image attached

Step-by-step explanation:

Hope it helps!!!!

7 0
3 years ago
For males in a certain town, the systolic blood pressure is normally distributed with a mean of 130 and a standard deviation of
valina [46]
Average systolic blood pressure = x = 130
Standard deviation = s = 6

We are to find interval that represents the systolic blood pressure of middle 99.7% of the males.

According to the empirical rule:
a) 68% values lie within 1 standard deviation of the mean
b) 95% values lie within 2 standard deviation of the mean
c) 99.7% values lie within 3 standard deviation of the mean

So, 99.7% value will lie within 3 standard deviations from the mean.

We can express this range as:
( x - 3s, x + 3s)
= (130 - 3(6), 130 +3(6))
= ( 130 - 18, 130 + 18)
= ( 112, 148 )

Thus the interval from 112 to 148 contains the systolic blood pressure of middle 99.7% of the males in the certain town
5 0
3 years ago
Could someone pls help me!
Angelina_Jolie [31]

Answer:

It will be complete in 20 miles and it will be 57 miles when it is complete.

Step-by-step explanation:

37 is one less mile than 38 and 38 is two thirds of 57, so the highway is 57 miles when completed. 57 subtracted by 37 equals 20

7 0
3 years ago
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The table of values represents a function ​f(x).
TiliK225 [7]

Answer:

- The interval  [9, 10] is 1,375% greater than the interval [5, 8].

- The interval  [9, 10] is 14.75 times greater than the interval [5, 8].

Step-by-step explanation:

1. To solve this problem you must apply the following formula:

AverageRateOfChange=\frac{y_{2}-y_{1}}{x_{2}-y_{1}}

2. Let's calculate the average rate of change of each interval:

a) Interval [9,10]:

 =\frac{11,014-4,052}{10-9}=6,962

b) Interval [5,8]:

 =\frac{1,491-75}{8-5}=472

3. The difference is:

6,962-472=6,490

4. In percentage:

(\frac{6,962-472}{472})(100)=1,375%

5. You have that the interval [9,10] is 14.75 times greater than the interval [5,8], as you can see below:

\frac{6,962}{472}=14.75

3 0
4 years ago
Read 2 more answers
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