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Anika [276]
3 years ago
7

A ruler is 12 inches long. What is the length of this ruler in centimeters?

Mathematics
2 answers:
LekaFEV [45]3 years ago
8 0
Answer:

24CM

Explanation:
Elza [17]3 years ago
5 0

Answer:

the length of a ruler in cm is 30.48.

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Mo has some sweets. He shares them out between x of his friends in 2 different wys. 7 sweets each with 2 leftover or 6 sweets ea
sveticcg [70]

Answer:

Mo is sharing the sweets between 5 friends

Step-by-step explanation:

An important thing to note is that whichever way Mo shares the sweets, the total number of sweets he has does not change. It means that if he chooses the first method to share the sweets, or the second method, he still has the same number of sweets. This will be helpful in setting up an equation that will help us solve the problem.

If he chooses the first way to share the sweets:

7x + 2 = total number of sweets available.

<em>This is because each of his friends gets 7 sweets each, with 2 leftovers. If we add them up, it will give the total number of sweets available to be shared.</em>

<em />

If he chooses the second way to share the sweets:

6x + 7 = total number of sweets available.

<em>This is because each of his friends gets 6 sweets each, with 7 leftovers. If we add them up, it will give the total number of sweets available to be shared.</em>

<em />

because the total number of sweets do not change, we have

7x +2 = 6x +7

Grouping like terms,

7x - 6x = 7 - 2

x = 5.

Therefore, Mo is sharing the sweets between 5 friends

7 0
2 years ago
A certain company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a
Brrunno [24]

Answer:

A certain company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a battery is normally distributed, with a mean of 50 months and a standard deviation of 9 months. If the company does not want to make refunds for more than 10% of its batteries under the full-refund guarantee policy, for how long should the company guarantee the batteries?

The company should guarantee the batteries for 38 months.

Step-by-step explanation:

Using standard normal table,

P(Z < z) = 10%

=(Z < z) = 0.10

= P(Z <- 1.28 ) = 0.10

z = -1.28

Using z-score formula  

x = zσ  + μ

x = -1.28 *9+50

x = 38

Therefore, the company should guarantee the batteries for 38 months.

4 0
3 years ago
Read 2 more answers
Use a graphing calculator or online application to find the solutions to x^2-9 =6sqrt3/x to the nearest tenth.
Olegator [25]

Answer:

  {-1.7, 3.5}

Step-by-step explanation:

I find it convenient to graph the difference of the two sides of the equation. That difference is zero when the equation is satisfied. This equation has two solutions, near x = -1.7 and x = 3.5.

4 0
3 years ago
Salina is 63 inches tall. approximately how tall is she in centimeters?
salantis [7]
2.45cm=1 in
times both sides by 63
160.02cm=63 in

about 160cm
4 0
3 years ago
FREE POINT AND BRAINLIEST SO WHO EVER ANSWERS FIRT THEY GET BRAINLIEST AND ALSO 100 POINTS
Tpy6a [65]

Answer:

heyyyyy

Step-by-step explanation:

4 0
3 years ago
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