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3 years ago

What is 10 x 42 – 6 x 3 + 3 ? Evaluating expressions with Exponents

Mathematics

1 answer:

lesya [120]3 years ago

3 0

10 x 42= 420 6 x 3=18 420-18=402 402 + 3= 405 Answer:405

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Simply the ratio 4:6

ladessa [460]

Answer:

2:3

Step-by-step explanation:

4:6

4/2=2

6/2=3

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3 years ago

Victor is measuring his bodily dimensions. his neck is 14.72 inches in circumference, and his forearm is 25.81 centimeters long.

Anarel [89]

The circumference of Victor's neck is 44.86% longer than his forearm.

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3 years ago

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Vita wants to center a towel bar on her door that is 27 1/2 inches wide. She determines that the distance from each end of the t

timurjin [86]

Answer:

The equation is $x+18 =\frac{55}{2}$ ..

The length of the towel bar is $\frac{19}{2}\ in \ \ \ OR \ \ \ 9\frac{1}{2}\ in$ ..

Step-by-step explanation:

Given,

Length of the door = $27\frac{1}{2}\ in$

we can rewrite $27\frac{1}{2}\ in$ as $\frac{55}{2}\ in$ .

We have to find out the length of the towel bar.

Let the length of towel bar be 'x'

`Since Vita wants that the distance from each end of the towel bar to the end of the door to be 9 inches.

So we can say that the length of the towel bar plus from each end of the towel bar to the end of the door plus from each end of the towel bar to the end of the door is equal to length of door.

framing in equation form, we get;

$x+9+9= \frac{55}{2}\\\\x+18 =\frac{55}{2}$

Hence The equation is $x+18 =\frac{55}{2}$ .

Now we solve the equation we get;

Subtracting both side by 18 we get;

$x+18-18=\frac{55}{2}-18\\\\x=\frac{55}{2}-18$

Now we will make the denominator common we get;

$x=\frac{55}{2} -\frac{18\times2}2= \frac{55}{2} -\frac{36}2 = \frac{55-36}{2}=\frac{19}{2}\ in \ \ \ OR \ \ \ 9\frac{1}{2}\ in$

Hence The length of the towel bar is $\frac{19}{2}\ in \ \ \ OR \ \ \ 9\frac{1}{2}\ in$ .

6 0

3 years ago

Please can u help me with number two please I'm so lost and I don't know on what to do

zhenek [66]

You would know 4×5=20 so just add 2 more zeroes cause there is a zero in 40 and in 50

hope this is what you're looking for and made sense

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3 years ago

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The denominator of a fraction is 4 more than its numerator.

alukav5142 [94]

<h3>Answer:</h3>

<h3>Step-by-step explanation:</h3>

Let n represent the numerator of the original fraction, which is n/(n+4). After adding 1/2, the value is (2(n+4)+1)/(2(n+4)), so we have ...

n/(n+4) + 1/2 = (2(n+4)+1)/(2(n+4))

Simplifying gives ...

... (2n +(n+4))/(2(n+4)) = (2n +9)/(2(n+4))

Since the denominators are the same, we can work only with the numerators.

3n +4 = 2n +9

n = 5 . . . . . . . . . . . subtract 2n+4

_____

<em>Check</em>

The original fraction is 5/(5+4) = 5/9. Adding 1/2 gives ...

5/9 + 1/2 = 10/18 + 9/18 = 19/18

Note the numerator of this last fraction is 1 more than the denominator, which is twice the original denominator.

8 0

3 years ago

What is 10 x 42 – 6 x 3 + 3 ? Evaluating expressions with Exponents​

What is 10 x 42 – 6 x 3 + 3 ? Evaluating expressions with Exponents