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melisa1 [442]
3 years ago
14

If x = 10 & y = 2.5, solve for z. Z=x/y

Mathematics
2 answers:
Aleksandr-060686 [28]3 years ago
8 0

Answer:

z=4

Step-by-step explanation:

If z=x/y and x=10 and y=2.5 then,

z=10/2.5

10/2.5=4

meriva3 years ago
3 0

Answer:

4

Step-by-step explanation:

Step 1:

z = x/y

Step 2:

z = 10/2.5

Answer:

z = 4

Hope This Helps :)

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A random sample of 100 recorded deaths in the United States during the past year showed an average life span of 71.8 years. Assu
Oliga [24]

Answer:

This indicates that the chances of the mean life span today is greater than 70 years is 0.5871

Step-by-step explanation:

The past year showed an average life span of 71.8 years.

\mu = 71.8 years

Population standard deviation = 8.9 years

\sigma = 8.9 years

We are supposed to find the mean life span today is greater than 70 years

i.e. P(X>70)

Formula : Z = \frac{x-\mu}{\sigma}

Z=\frac{70-71.8}{8.9}

Z=−0.202

P(X<70)=0.4129

P(X>70)=1-P(X<70)=1-0.4129=0.5871

Hence This indicates that the chances of the mean life span today is greater than 70 years is 0.5871

7 0
3 years ago
Read 2 more answers
How do you divide 15÷91
klio [65]
The answer is .1648---and continues. It's irrational.
15/91=.1648---

6 0
3 years ago
6y + 15 = A (2y +B)
Black_prince [1.1K]

Step-by-step explanation:

C. A =3 , B = 5

6y + 15 = 3 ( 2y + 5 )

A = 3

B = 5

5 0
3 years ago
Which statements are true?
GaryK [48]
<h3>Answer:</h3><h3>There are 3 true statements, and the true statements are: </h3><h3>choice A, choice C, choice D</h3>

======================================================

Explanation:

A. True. All triangles have 3 straight sides and 3 angles.

B. False. All triangles are polygons. A polygon is just a collection of line segments glued together to form a closed shape.

C. True. A plane figure is a flat shape.

D. True. See choice A.

E. False. Some triangles do not have one right angle. Example: obtuse triangles do not have any right angles.

7 0
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Dylan bought 3 identical shirts online for a total cost of $71.83 including a flat rate of $7.99 for shipping. Drag numbers to c
Vesnalui [34]

Answer:

3s + 7.99 = 71.83

Step-by-step explanation:

Yeah, algebra sure confused me the first time I took it. I had a much more patient and engaging teacher the second time!

How would we find out in real life how much each shirt cost? We'd subtract 7.99 from 71.83 and divide the difference by 3, right??

Let's work that backward. Let's say a shirt cost $6. Three would cost $3(6), or $18. Since each shirt costs $s, our price for 3 shirts is $3s. We have to add shipping to get a total, which we are given. When writing an equation, we leave out labels like $ or meters or books or whatever.

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3 years ago
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