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olga nikolaevna [1]
3 years ago
14

Help please? not sure about this

Mathematics
1 answer:
zimovet [89]3 years ago
8 0

9514 1404 393

Answer:

  72 kph

Step-by-step explanation:

The first sentence tells you the speeds are proportional. So, you can write the proportion ...

  kph/mph = 120/75 = x/45

Multiplying by 45 gives x:

  x = (45)(120/75) = 72

72 kph is 45 mph.

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Is 0.7142857.... a rational number? why or why not?
Andreyy89
The number 0.7142857 is definitely a rational number. This number can also be expressed as 7142857/10000000. Now we know that a rational number is a number that can be expressed as a fraction or a quotient of two integers. The denominator of the fraction can never be equal to zero. In case of the number given we can clearly see that the denominator of this fraction is not zero. The actual fraction of this number is 5/7. In this case we find that the denominator is not zero.



4 0
3 years ago
Find the<br>simple interest:<br>Princpd $6000<br>Interest Rate 5%<br>Time: 6 months<br>Start​
sattari [20]

Answer: The interest is: $150.00

The formula we'll use for this is the simple interest formula, or:

Where:

   P is the principal amount, $6000.00.

   r is the interest rate, 5% per year, or in decimal form, 5/100=0.05.

   t is the time involved, 6....month(s) time periods.

   Since your interest rate is "per year" and you gave your time interval in "month(s)" we need to convert your time interval into "year" as well.

       Do this by dividing your time, 6- month(s), by 12, since there's 12 months in 1 year.

   So, t is 0.5....year time periods.

To find the simple interest, we multiply 6000 × 0.05 × 0.5 to get that:

The interest is: $150.00

8 0
3 years ago
Avery’s water bottle holds 300 milliliter. Dashawn’s container holds 3/4 as much water. How many milliliters do both containers
Nady [450]

Answer:

Both containers hold 225 ml.

Step-by-step explanation:

300/4 =75 so 1/4 is equal to 75 mL


300-75=225mL


Dashawn's water bottle holds 225mL

Hope this helps! :)


<h3>CloutAnswers</h3>
8 0
3 years ago
Read 2 more answers
Which of the following is the graph of the solution set of t – 4 ≥ 4t + 8 or 3t &gt;14 – 4t?
Stells [14]

Answer:

Option (C)

Step-by-step explanation:

There are two inequalities,

t - 4 ≥ 4t + 8 ------(1)

3t > 14 - 4t ------(2)

By simplifying inequality (1),

t - 4 ≥ 4t + 8

t ≥ 4t + 8 + 4

t ≥ 4t + 12

t - 4t ≥ 12

-3t ≥ 12

t ≤ \frac{12}{(-3)}

t ≤ -4

By solving inequality (2),

3t > 14 - 4t

3t + 4t > 14

7t > 14

t > \frac{14}{7}

t > 2

From the given graphs, Option (C) will be the answer.

4 0
3 years ago
Mr. Jones has all the students in his class line up. The 9th student in line ends up being exactly at the middle of the line. Ho
kifflom [539]
The 9th student is in the middle.
⇒ There are 8 students before him
⇒ There are 8 students behind him

Total number of students = 8 + 1 + 8  = 17

Answer: 17
6 0
3 years ago
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