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kompoz [17]
3 years ago
8

How to solve this equation

Mathematics
1 answer:
8_murik_8 [283]3 years ago
3 0

\bold{Hey\ there!}

  • \bold{x^2=81}
  • \bold{Take\ your\ particular\ root\ (square\ root\ preferably)}
  • \rightarrow{\bold{x=\pm\sqrt{81}}}
  • \bold{\frac{\sqrt{81}}{9}=9}
  • \boxed{\boxed{\bold{Answer:x\rightarrow9\ or\ x\rightarrow-9}}}\checkmark

\bold{Good\ luck\ on\ your\ assignment\ \& \ enjoy\ your\ day!}

~\frak{LoveYourselfFirst:)}

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Susie has a bag with 8 hair pins, 7 pencils, 2 snacks, and 4 books. What is the ratio of books to pencils?
Viefleur [7K]
<h3>Hello there!</h3>

The first thing we need to do here is see which information is relevant.

The question is asking for the ratio of books to pencils.

Therefore, we only need the number of books and pencils - all other information given is irrelevant in this scenario.

Number of books - 4

Number of pencils - 7

Now, we can order this as a ratio.

A ratio is two numbers put as a proportion. It's normally written out as first number : second number.

In this case, it's the ratio of number of books : number of pencils.

Fill in the number of books and number of pencils into each side of the equation.

number of books : number of pencils

4 books : 7 pencils (the unit is normally dropped)

So therefore, 4:7 would be your final answer.

Hope this helped!

4 0
3 years ago
Read 2 more answers
Help QUICK PLS<br>I need answers quick<br>will mark as brainliest.​
stiv31 [10]

Answer:

integer

Step-by-step explanation:

the slope looks like it's 4/1 when simplified it's 4. (integer)

7 0
3 years ago
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Given f(x)= 7x-5. Find the value of f(8)​
e-lub [12.9K]

Answer: 52

Explanation:

You need to replace the x-values with 8 to solve this. So, the equation would look like this. f(8)= 7 x 8 - 5

7 times 8 is 56. 56 minus four is 52 which is your answer.

If you needed to graph this then it would look like this... (8, 52)

The 8 is in the input because it is the x-value (we replace x with 8) and 52 is output/range/y-value because it is the answer.

8 0
3 years ago
One maid can clean the house four times faster than another. Working together they can clean the entire house in 4 hours. How lo
stich3 [128]

<u>5 hours</u><u> long would it take the </u><u>faster </u><u>maid cleaning alone.</u>

What is a linear equation in math?

  • A linear equation only has one or two variables.
  • No variable in a linear equation is raised to a power greater than 1 or used as the denominator of a fraction.
  • When you find pairs of values that make a linear equation true and plot those pairs on a coordinate grid, all of the points lie on the same line.

Suppose, time taken by faster maid be x , hours.

So, time taken by slower maid ,

 x_{2} = 4x_{1}        ( 4 time faster maid )

Now, time taken by both of the  made together is given by ,

( \frac{x_{1}x_{2}  }{x_{1} + x_{2} } )

\frac{x_{1}(4x_{1} ) }{x_{1} + 4x_{1} }  = 4 hours

\frac{4x_{1} }{5}  = 4 hours

x_{1} = 5 hours     which is the time required by faster maid.

Learn more about linear equation

brainly.com/question/12974594

#SPJ4

8 0
1 year ago
Write the number in standard form.
WINSTONCH [101]

Answer:

The number in standard form is 233.64

8 0
3 years ago
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