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3 years ago

Simplest radical form of 5√16

Mathematics

2 answers:

boyakko [2]3 years ago

6 0

5 square root 16 = 20

xxTIMURxx [149]3 years ago

3 0

While simplifying a term into simplest radical form you must take the perfect square out of the square root. Here are some simple perfect squares to just know on the top of your head 1^2=1, 2^2=4, 3^2=9, 4^2=16, 5^2=25 and so on... With 16 already being a perfect square then you can get the square root of it which would be 4. With that done, you would multiply the square root of 16 (which is 4) by 5 and would leave you with 20.

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The answer and steps for this question

melamori03 [73]

I will solve your system by substitution.x=3y−1;5x−7y=19Step: Solvex=3y−1for x:Step: Substitute3y−1forxin5x−7y=19:5x−7y=195(3y−1)−7y=198y−5=19(Simplify both sides of the equation)8y−5+5=19+5(Add 5 to both sides)

8y=248y8=248(Divide both sides by 8)y=3Step: Substitute3foryinx=3y−1:x=3y−1x=(3)(3)−1x=8(Simplify both sides of the equation)

x=8 and y=3

6 0

3 years ago

Read 2 more answers

12 is 90% of what number? with steps

a_sh-v [17]

Answer:

<h3>Let's understand the concept:-</h3>

Here 12 is 90% of a number.
So we can say that 90% of That number is 12 .
In this way we can get the the number

<h3>Solution:-</h3>

Let,

the number=x

<h3>According to the question ,</h3>

${:}\longrightarrow$ $\sf 90\% \:of \;x=12$

We know 90%=90/100
so add it

${:}\longrightarrow$ $\sf {\dfrac {90}{100}}\times x=12$

${:}\longrightarrow$ $\sf {\dfrac {90x}{100}}=12$

Now use cross multiplication method

${:}\longrightarrow$ $\sf 90x=12\times 100$

${:}\longrightarrow$ $\sf 90x=1200$

Now interchange sides .

${:}\longrightarrow$ $\sf x={\dfrac {1200}{90}}$

${:}\longrightarrow$ $\sf x={\dfrac {200}{15}}$

Answer will come in decimals so we take approximate value.

${:}\longrightarrow$ $\sf x=13.3$

${:}\longrightarrow$ $\sf x=approximately \:13$

$\therefore$ The number is 13.

6 0

2 years ago

In the system of equations below, which variable would it be easiest to solve for? x + 4 y = 14. 3 x + 2 y = 12 The easiest to s

Murljashka [212]

Answer:

<h2>The easiest to solve for is x in the first equation</h2>

Step-by-step explanation:

Given the system of equation, x + 4 y = 14. and 3 x + 2 y = 12, to solve for x, we can use the elimination method of solving simultaneous equation. We need to get y first.

x + 4 y = 14............ 1 * 3

3 x + 2 y = 12 ............ 2 * 1

Lets eliminate x first. Multiply equation 1 by 3 and subtract from equation 2.

3x + 12 y = 42.

3 x + 2 y = 12

Taking the diffrence;

12-2y =42 - 12

10y = 30

y = 3

From equation 1, x = 14-4y

x = 14-4(3)

x = 14-12

x = 2

It can be seen that the easiest way to get the value of x is by using the first equation and we are able to do the substitute easily because the variable x has no coefficient in equation 1 compare to equation 2 as such it will be easier to make the substitute for x in the first equation.

5 0

3 years ago

William works at a nearby electronics store. He makes a commission of 6% on everything he sells. If he sells a computer for$764.

Sedaia [141]

Commission=0.06×764=$45.84

7 0

3 years ago

Subtract 6 from me. Then multiply by 2. If you subtract 40 and then divide by 4, you get 8. What number am I?

aliina [53]

Answer:

Step-by-step explanation:

Let the number be "x"

We translate the word equation to algebraic equation.

First,

subtract 6 from me, so we have:

x - 6

Now,

Multiply by 2, so we have:

2(x-6)

Now,

Subtract 40, then divide by 4:

$\frac{2(x-6)-40}{4}$

Now, you get "8", so equate this to 8, we get:

$\frac{2(x-6)-40}{4}=8$

We now solve using algebra:

$\frac{2(x-6)-40}{4}=8\\2(x-6)-40=4*8\\2(x-6)-40=32\\2x-12-40=32\\2x-52=32\\2x=32+52\\2x=84\\x=42$

The number is 42

7 0

3 years ago

Simplest radical form of 5√16​

Simplest radical form of 5√16