4 years ago

What is -2sqrt20 - sqrt of 125 in simplest radical form?

Mathematics

1 answer:

suter [353]4 years ago

3 0

I believe it would be -9sqrt5

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A number is between 16 and 21. It has prime factors of 2, and 3. What is the number?

Advocard [28]

Answer:18

Step-by-step explanation: 18=2.3.3

6 0

3 years ago

The ratio of boys to girls in math classes is 3.5. If there are 130 girls in these classes, how many boys must there be?

dsp73

Answer:

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>

The ratio of boys and girls =3:5

Let

Number of boys=3x

Number of girls =5x

According to the question Numbers of girls=130

${:}\longrightarrow$ $\sf 5x=130$

Now interchange both sides and get x

${:}\longrightarrow$ $\sf x={\dfrac {130}{5}}$

${:}\longrightarrow$ $\sf x=26$

The number of boys=3x

=3×26=78

$\therefore$ Number of boys is 78.

4 0

3 years ago

Can someone help me with this answer I’m on a test and it’s almost due

Brrunno [24]

16.5 / p = 11 / 18

p = 16.5 × 18 / 11

p = ( 16.5 / 11 ) × 18

p = 1.5 × 18

p = 27

6 0

3 years ago

What digit(s) can be in the one's place of a number that has 5 as a factor?

max2010maxim [7]

Any number that ends with a 0 or a 5 would be a multiple of 5 because as you multipy numbers by 5 you start to see a pattern in the ones place of 5,0,5,0,5,0,5,0,... And so on forever

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4 years ago

Read 2 more answers

Difference between 0,-6 and 5,-1

Korolek [52]

Answer:

7.0711

a^2+b^2=c^2

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3 years ago