7. Define a variable and write an expression for the phrase. 8 minus a number

Mathematics

2 answers:

lakkis [162]2 years ago

7 0

8-x ccccccccccccccccccccc

xxTIMURxx [149]2 years ago

5 0

A variable is a quantity that may change within the context of a mathematical problem or experiment. Typically, we use a single letter to represent a variable. The letters x, y, and z are common generic symbols used for variables.

So basically for your expression:

8-x
Hope that helped

You might be interested in

I don’t know what to do on here it’s really hard and I need help for the answer

Alla [95]

Ok so our original fraction is:
$\frac{36 {x}^{12} }{6 {x}^{9} }$
To simplify this fraction, look for instances where the values on the top and bottom can be reduced:

For example, 36 over 6 is the same as 6 over 1, so we can simplify the fraction so it is:
$\frac{6 {x}^{12} }{ {x}^{9} }$
We can also eliminate the denominator by dividing the nominator by x^9 so:
$\frac{6 {x}^{12} }{ {x}^{9} } \div \frac{ {x}^{9} }{ {x}^{9} }$
$= 6 {x}^{3}$
And that is the simplified answer of the fraction

Hope this helped

5 0

2 years ago

Find the Value of x ( All help would be appreciated )

TiliK225 [7]

Answer:

Hello! answer: x = 31

Step-by-step explanation:

This whole thing Will equal 360 we can subtract that by 112 and another 112 because there are two because they are vertical angles so 112 + 112 = 224 360 - 224 = 136 now we divide by 2 since those last two angles will have the same measure 136 ÷ 2 = 68 so now we just have to find out what multiplied by 2 plus 6 = 68 so 2 × 31 = 62 and 62 + 6 = 68 so x = 31 hope that helps! and I showed a visual for you so hopefully this makes more sense!