3 years ago

Halp plz i dont know the answwer

Mathematics

2 answers:

lisabon 2012 [21]3 years ago

4 0

Answer:

-2.1 is the answer im pretty sure

Step-by-step explanation:

Liula [17]3 years ago

3 0

Answer: I believe it is 1/3 or -1.3. or 1. Sorry if its not right.

Step-by-step explanation:

If it's correct you would make 2/5 into 4/10, 4/5 into 8/10. Then subtract 4/10-8/10=0/4 or -0.4. Then subtract (if its 1 then you would add 0.4+1=5 then turn 5 into 10/10 then subtract 10/10-9/10=1.) 0.4-9/10=1/3.

Hope 1 of these answers is right sorry if they aren't!!

You might be interested in

Convert 5.45787878 to a fraction. Simplify

TiliK225 [7]

Answer:

It is 54033/9900

Step-by-step explanation:

7 0

3 years ago

the height of burj Dubai, the tallest building in the world (2013), has a total of 162 stories. if the building is 828 meters ta

timama [110]

Divide: 828÷162
Equals about 5 meters per story

3 0

3 years ago

Read 2 more answers

What is mean by infinity in maths <br><br>

Solnce55 [7]

Answer:

The answer has no end and goes on forever.

Step-by-step explanation:

2/3=0.666666.

the answer keeps going

8 0

3 years ago

The perimeter of a square is the same as the circumference of a circle whose area is 61.6 cm^2. Find the area of the square.

Slav-nsk [51]

Answer:

Step-by-step explanation:

first, 4l=2 x π x radius............................ eqn 1

next, find the value for the radius, r using

Area of a circle=πx radius squared

61.6=3.142 x r x r

61.6÷3.142=r x r

r x r= 19.6

r=4.43

then substitute the value of r in eqn 1

4l=2 x 3.142 x 4.43

4L=27.83812

L= 27.83812÷4

L≈6.96

area of a square = L x L

=6.96 x 6.96= 48.43

3 0

2 years ago

Solve the equation and check your solution: 10 =1/3(x - 15).<br>

nignag [31]

Answer:

x=45

Step-by-step explanation:

10=1/3(x-15)

30=x-15

45=x

6 0

3 years ago

Read 2 more answers