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ohaa [14]
3 years ago
14

15% of a number is 30. What is the number?​

Mathematics
2 answers:
Anastaziya [24]3 years ago
6 0
200... that is your answer
Solnce55 [7]3 years ago
5 0

Answer:

60 percent

Step-by-step explanation:

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Marcos had 15 coins in nickels and quarters. He had 3 more quarters than nickels. He wrote a system of equations to represent th
hodyreva [135]

Answer:

There are 6 coins in nickels and 9 coins in quarters.

Step-by-step explanation:

Now, to find the solution.

According to question:

The number of nickels = x.

The number of quarters = y.

So, the total number of coins:

x+y=15.

He had 3 more quarters than nickels.

Thus,

y=x+3 .....(1)

Now, to get the solution:

x+y=15

Substituting the equation (1):

x+(x+3)=15

x+x+3=15

2x+3=15

<em>Subtracting both sides by 3 we get:</em>

<em />2x=12<em />

<em>Dividing both sides by 2 we get:</em>

x=6.

<em>The number of nickels = 6.</em>

Now, substituting the value of x in equation (1):

y=x+3\\\\y=6+3\\\\y=9.

<em>The number of quarters = 9.</em>

Thus, there are 6 coins in nickels and 9 coins in quarters.

6 0
3 years ago
the mean of four consecutive even numbers is 15.the greatest of these numbers is a1.the least of these numbers is a2.
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Hello,

I suppose you want the 4 numbers.

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3 0
3 years ago
Can someone please answer this question please answer it correctly and please show work please help me I need it
Murrr4er [49]

Answer:

B

Step-by-step explanation:

Subtracting v - q, will be subtracting the atmosphere to the sun - surface to the sun.

The answer will be negative distance of the atmosphere.

However, we cant really have a 'negative' atmosphere, this is where the |absolute value| signs make this problem correct.

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