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Mama L [17]
3 years ago
14

Express "2 inches of snow in 9 hours" as a rate and a unit rate

Mathematics
1 answer:
evablogger [386]3 years ago
3 0
It takes 4.5 hours for one inch of snow
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Jaxon has $65 in his savings account. He deposits $15 every week. His father also deposits $25 into the account every time Jaxon
Grace [21]
Part A:
A coefficient can be either '15' or '25'.
A variable can be either 'w' or 'm'.
A constant is 65.

Part B:
Simply substitute, or plug-in, the numbers and solve.
***Step 1:
65+15w+25m --> 65+15(20)+25(3)
You do this because you are substituting the 'w' for the number
of weeks that Jaxon saved up for, which is 20, and the 'm' for the number
of times that Jaxon mowed the lawn, which is 3.
***Step 2:
65+15(20)+25(3) --> 65+300+75
Begin to solve, using PEMDAS, or whichever acronym you learned.
Remember, if you are using PEMDAS, recall that the order is Parenthesis,
Exponents, Multiplication/Division (whichever comes first), and
Addition/Subtraction (whichever comes first). Here, I checked for parenthesis.
I did find parenthesis, however, they do not have any expressions inside of
them, meaning that these parenthesis are for multiplying, and not for stating
order. So, you skip parenthesis. Next, you check for exponents, which you
find none of, so you skip over that. Now, we get to multiplying/dividing, so
you multiply the 15 and the 20 to get 300, and the 25 and 3 to get 75.
***Step 3:
65+300+75 --> 440
Now, we get to addition. You simply add everything up to get your final
answer: $440.

Part C:
If Jaxon had $75, then yes, the coefficients would change.
By subtracting $65 from $75, we can see that the total amount of money
from Jaxon's deposits and his lawn-mowing money is $10. Jaxon already
deposits $15 a week, meaning that, while using the current equation, Jaxon
CANNOT have $75 in his bank account. We can change the equation
so that Jaxon is able to have $75 in his savings account. You can change
the coefficient of 15 to 10, and the other coefficient of 25 to 0.
Now Jaxon is able to have $75 in his savings account.
8 0
3 years ago
A cutting tool fails due to flank wear while machining. It is observed that the tool life at a cutting speed of 160 m/min is 5 m
Ahat [919]

Answer:

The answer is:

30 minutes.

Step-by-step explanation:

We are given the following information:

at 160 m/min, tool life = 5 min.

at 120 m/min, tool life = 17 min.

This means that as the speed reduced from 160 m/min to 120 m/min, the tool life increased from 5 min. to 17 min, hence the difference between the changes are:

speed = 160 - 120 = 40 m/min

tool life = 17 - 5 = 12 min.

Therefore, it can be concluded that a change of speed of 40 m/min, increases the tool life by 12 min.

40 m/min = 12 min

∴ 1 m/min = 12/40 min.

∴ 100 m/min = 12/40 × 100 = 0.3 × 100 =30 min.

8 0
3 years ago
Use the substitution method to solve the system of equations
shusha [124]

Answer:

you need to give us the equation or we can't help you

Step-by-step explanation:

i'm sorry if this is not what you're looking for :(

7 0
3 years ago
Mrs. White paid $946.50 for five plane tickets. How much did each plane ticket cost?
lakkis [162]

Answer:

Each plane ticket was $189.3

Step-by-step explanation:

If all tickets were at the same price, and for five tickets the person paid $946.50, then to find out how much was each ticket, we simply have to divide this quantity by 5:

$946.5 / 5 = $189.3

3 0
4 years ago
Read 2 more answers
Which event is considered neither likely nor unlikely?
Sergeeva-Olga [200]
A.) it is possible to roll a number greater than 1 on a six sided number cube.  - So it is likely.

B) It is possible to roll a 1.  - So it is likely.

C) It is possible to get a heads when flipping a coin.  - So it is likely.

D) It is possible to choose a X, Y or Z from the alphabets. - So it is likely.


Am sorry did not see any one that is neither likely nor unlikely.

There is likelihood in each of the Event, but to some varying degree.

I hope this helps.
8 0
3 years ago
Read 2 more answers
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