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Kay [80]
2 years ago
12

Whats the square root of 15?

Mathematics
1 answer:
lapo4ka [179]2 years ago
8 0

Answer:

The square root of 15 in exact form but in decimal form its 3.87298334

Step-by-step explanation:

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there are nickels, dimes, and quarters in a piggy bank. altogether, the coins are worth $3.65. the number of dimes is three time
hoa [83]

This question is solved using a system of equations, and doing this, we get that: There are 9 quarters, 4 nickels and 12 dimes.

I am going to say that:

x is the number of nickels.

y is the number of dimes.

z is the number of quarters.

In all, they are worth $3.65.

A nickel is worth $0.05, a dime is worth $0.1 and a quarter is worth $0.25, so:

0.05x + 0.1y + 0.25z = 3.65

Dimes: 3 times greater than nickels:

This means that:

y = 3x

Quarters: One greater than double the number of nickels:

This means that:

z = 2x + 1

Value of x:

We have y and z as function of x, so we can replace into the equation and find the value of x, so:

0.05x + 0.1y + 0.25z = 3.65

0.05x + 0.1(3x) + 0.25(2x+1) = 3.65

0.05x + 0.3x + 0.5x + 0.25 = 3.65

0.85x = 3.4

x = \frac{3.4}{0.85}

x = 4

y and z:

y = 3x = 3(4) = 12

z = 2x + 1 = 2(4) + 1 = 9

There are 9 quarters, 4 nickels and 12 dimes.

A similar question is found at brainly.com/question/17096268

4 0
2 years ago
I need help dec iding if the triangle below are congruent in
lozanna [386]

Answer:

They're congruent if they have the exact same sides and the exact same angles. So from what i can see, yes they are congruent.

Step-by-step explanation:

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3 years ago
Represent the given condition using a single​ variable, x. Three consecutive odd integers.
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Those are 3 consecutive odd integers
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zysi [14]

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an hour....

Step-by-step explanation:

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The answer bNamamakakKkKkkKk
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That is really easy how don't you know
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