21.39 + 9=x ok this seems easy but I'm stuck it is supposed to= 30.39 how do you get that answer

Mathematics

2 answers:

lys-0071 [83]2 years ago

8 0

Answer: x = 30.39

Step-by-step explanation:

Hey there! I will give the following steps, if you have any questions feel free to ask me in the comments below. Good luck!

Step 1: Simplify 21.39 + 9 to 30.39.

Basically, add 21 + 9 which equals 30, then add .39 to the end. You will then get 30.39.

30.39 = x

Step 2: Switch sides.

x = 30.39

~I hope I helped you! :)~

Elodia [21]2 years ago

3 0

Answer:

30.39

Step-by-step explanation:

ok, think of it like 21+9. That =s 30 right? so then add the .39 and you get 30.39.

You might be interested in

A seagull flying in the air over water drops a crab from a height of 45 feet.The distance the crab is from the water as it falls

jonny [76]

For the seagull to catch the crab, h(t)=g(t) so:

-16t^2+45=-13t+23 add 16t^2 to both sides

45=16t^2-13t+23 subtract 45 from both sides

16t^2-13t-22=0 using the quadratic equation:

t=(13±√1577)/32, since t>0

t=(13+√1577)/32 seconds

t≈1.65 seconds (to nearest hundredth of a second)

And the height that this occurs using either original equation is:

h((13+√1577)/32)≈1.59 ft (to nearest hundredth of a foot)

7 0

2 years ago

Select a composite number to break into factors. Continue

IgorC [24]

I hope this helped! Mark me Brainliest! :) -Raven❤️