2 years ago

Do what it says pls will give brainliest

Mathematics

1 answer:

algol132 years ago

4 0

It’s basically x=-1

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one number is 4 more than another number. if 4 times the smaller number is decreased by twice the larger number. the result is 1

soldier1979 [14.2K]

x and x+4 are the numbers

3x=2(x+4)

3x=2x+8

3x-2x=8

x=8

x+4=12

3 0

2 years ago

125% of what number is 25

Mazyrski [523]

We can create a equation to find out.

since we are finding a number where when multiplied by 1.25(this is the decimal form of the percentage) gives us 25, we know that the number we are finding is less than 25. here is the equation.

1.25(x)=25

divide both sides by 1.25 to get "x" alone.

x= 20

5 0

2 years ago

Read 2 more answers

For what interval is the function f(x) = (20 + \sqrt{x}) / (\sqrt{20 + x}) continuous?

konstantin123 [22]

Try this solution:
1. according to the condition
$\left \{ {{x \geq 0} \atop {20+x\ \textgreater \ 0}} \right. \ =\ \textgreater \ \ x \geq 0.$
2. for more details see the attached graph.

Answer: [0;+oo)