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Harman [31]
3 years ago
7

Write an expression that is equivalent to the following: x+x+x+x-20

Mathematics
2 answers:
SSSSS [86.1K]3 years ago
8 0

Answer:

4x-20 is the same as x+x+x+x-20

erastovalidia [21]3 years ago
4 0
Find the other numbers which are the x till you fin what gets you 20
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A. If you know the diameter of a sphere, you can find its radius.
USPshnik [31]

A. If you know the diameter, you can find the radius of a sphere by dividing the diameter in half. If you know the circumference, you can find the radius by dividing the circumference by 2 times pi

B. π × r2 × h

7 0
3 years ago
A manufacturer of cream filled donuts collected data from its automatic filling process, the amount of cream inserted into the d
fenix001 [56]

Answer:

The correct value is t* = 2.797.

Step-by-step explanation:

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 25 - 1 = 24

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a  two-tailed confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.797.

4 0
3 years ago
Find two numbers that may be rounded and added together to make 50 demonstrate your reasoning
natita [175]
Example:

38 rounds to 40

6 rounds to 10

10+40 = 50
4 0
3 years ago
Read 2 more answers
it's 3 miles around Westwood Park exercise Trail. after skating around the trail 5 and 1/2 times Mr Zorn lost a wheel. how many
svet-max [94.6K]

Mr. Zorn had skated total 17 miles.

<u><em>Explanation</em></u>

The length of the exercise trail around the Westwood park is  3 miles.

Mr. Zorn is skating around the trail 5 and 1/2 times.

So, the distance skated in 5 times = (3* 5) miles = 15 miles

and the distance skated in \frac{1}{2} of the trail = (3* \frac{1}{2})miles = 1.5 miles

Thus, the total distance he had skated will be: (15+1.5) miles = 16.5 miles \approx 17 miles <em>(Rounded to the nearest mile)</em>

5 0
3 years ago
A gas occupies 1.00 L at standard temperature. What is the volume at 606 K?
tino4ka555 [31]

Answer:

the volume at 606k is 2.22....the third one

Step-by-step explanation:

v1=1.00 t1=273 v2=? t2=606

v1/t1=v2/t2

1.00/273=v2/606

1.00×606=273v2

606=273v2

606/273=v2

2.21 L=v2

3 0
3 years ago
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