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podryga [215]
3 years ago
15

Say if the Earth rotates 1.25 degrees in 5 mintues. But a classmate wants to find out how many degrees the Earth can rotate in 2

minutes. She does a problem:  she  puts 1.25 over 5  and divides them both  by 2, and her answer was 0.625 over 2.5.  Explain her error and give the correct rate.
(Please help Thanks!)
Mathematics
1 answer:
givi [52]3 years ago
4 0

Her error was dividing them by 2 she would place 1.25 over 5 then divide by 5 to get the unit rate per minute then multiply the quotient by 2 to get the rate of degrees moved for 2 minutes which is .5  or .50 degrees every two minutes.

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Based on the number line, about how many ounces are there in 8 pounds?
Reika [66]

Answer: 128 ounces

Step-by-step explanation:

16 ounces are in each pound. so if you take that number and times it with the number 8 you would get 128 ounces.

8 0
3 years ago
What is the total amount of fees if there were 6 withdrawals for cash in a month, 10 uses of an ATM,
almond37 [142]

Answer:

34

Step-by-step explanation:

16+10+6=34

3 0
2 years ago
-2x - y = 1<br> -6x=3y+3
Natali5045456 [20]

Answer: All Real Number

Step-by-step explanation:

This is a system of equation, and generally, there are three ways to solve:

  • elimination
  • substitution
  • augmented matrix

Here, we are going to use elimination

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Given

-2x-y=1

-6x=3y+3

Put them in the same order

-2x-y=1

-6x-3y=3

Multiply 3 on both sides for the first equation

-6x-3y=3

-6x-3y=3

We subtract the first equation from the second equation

0=0

The answer will be All Real Numbers, which means any real number will fit this equation. In the graphing method, these two equations will overlap each other.

Hope this helps!! :)

Please let me know if you have any questions

6 0
3 years ago
a study shows that, over the course of a lifetime, the average salary of college graduates is greater than the salary of people
RUDIKE [14]

Answer:

Answer: The word "ensures" implies that it is certain.

In the case of the study, they simply found that the average salary is greater for college graduates. This doesn't mean that in every case the college graduate makes more money.

The problem is the word "ensures". Our study doesn't show certainty only a general pattern.

Step-by-step explanation:

6 0
3 years ago
HELP! Please coins and a Brainly :)
blsea [12.9K]

Since it's a linear equation and there's a constant rate (given in the problem), we can choose our x - axis to be the time and the y - axis to be height. We choose it that way because you are going up in the elevator. The more time in the elevator, the higher you go.


Finding this equation uses the point slope formula, y - y₁ = m(x - x₁). It can be done with slope-intercept, y = mx + b too.).


First we need to get the slope of the line. Choose any two points, but be consistent and choose two y points as well as the matching x ones. Here, we use x₁ = 2, x₂ = 4, y₁ = 45, y₂ = 75. Slope, m, is y₂ - y₁ / x₂ - x₁.


m = 75 - 45 / 4 - 2

= 30 /2

= 15


Next, we use the slope of 15 and either of the points to find the linear equation. Choose the same (2, 45) x-y pair above, but any point will work.


y - 45 = 15 (x - 2)

y - 45 = 15x - 30

y = 15x + 15


So the linear equation representing this table us y = 15x + 15.

6 0
3 years ago
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