Answer:

Step-by-step explanation:
As given
if n erasers have a weight of 80 grams .
I.e
n erasera = 80 grams.
1 erasers weight .

Now find out the weight of the 50 erasers.

Simplify the above


Answer:
then x = 2.
Step-by-step explanation:
4 multiplied by 2 = 8
8 divided by 2 equals 4
Putting it together:
4(2)/2=4
50% of 620 is half of 620.
Writing 50% of 620 is 50%. (Or 310 if you wanted to know half of 620)
Answer:
The equation of the line is.

Step-by-step explanation:
Given:
The given points are (0, -4) and (-4, 6)
The equation of the line passing through the points
and
is.

Thus, the equation of the line that passes through the points (0, -4) and (-4, 6) is







The above equation is divided by 2 both sides.


Therefore, the equation of the line that passes through the points (0, -4) and (-4, 6) is 
Pythagoras’ Theorem = a^2+b^2=c^2
c^2= 5^2+12^2
=25+144
=169
c= sqrt of 169
c=13
Hypotenuse=13cm