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den301095 [7]
3 years ago
12

The following triangles are similar. Find x

Mathematics
1 answer:
aleksandrvk [35]3 years ago
7 0

Answer:

15

Step-by-step explanation:

if 3x3 is 9 and 4x3 is 12 then 5x3 is 15

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One hour on earth is four hours on planet S.
Andreas93 [3]

Answer:

The answer is 60 hours.

Step-by-step explanation:

We could use proportions to solve.

\frac{1 \: hour \: on \: earth}{4hours \: on \: planet \: s}  =  \frac{x}{240hours \:  on \: planet  \: s}

4 \times x = 4x \\ 1 \times 240 = 240

\frac{4x}{4}  =  \frac{240}{4}  \\ x = 60

3 0
3 years ago
Which substance is a mixture?<br> salt<br> gasoline<br> aluminum<br> carbon dioxide
pogonyaev
First, we must understand why the three other choices are not mixtures. Salt is a compound made from elements Sodium and Chlorine. Aluminum is an element. Carbon dioxide is also a compound composed of Carbon and Oxygen. Now, gasoline. is substance made from refined crude oils (or hydrocarbons). As a matter of fact, gasoline is an example of a homogenous mixture. Thus, amongst the choices, the mixture would be gasoline<span>. </span>
5 0
3 years ago
Read 2 more answers
What is the solution of the system of equations?<br><br> Y=-3x+8<br> Y=-5x+2
olganol [36]

Answer:

x=-3 y=17 (-3;17)

Step-by-step explanation:

-3x+8-y=0

-5x+2-y=0

-2x-6=0

So: x=-3

While....by substituting: y=17

3 0
3 years ago
Solve for x.show your work please<br><br> - 1/2x &lt; -12
Ratling [72]

Answer:

x <24

Step-by-step explanation:

first cancel negative signs

then transfer 2 to right side

3 0
3 years ago
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Simplify the rational expression by rationalizing the denominator √15/√6x
noname [10]

Answer:

√10/2x

Step-by-step explanation:

Multiply by √6 on the top and bottom to rationalize the denominator.

(√15×√6)/(√6x×√6) = √90/6x = (√9×√10)/6x = 3√10/6x = √10/2x

4 0
3 years ago
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