A glass is 4
7
full. Then 70cm3 of orange juice is poured in.
The glass is now
3
4
full. What is the total volume of the glass?

Step-by-step explanation:

4/7 x + 70 cm^3 = 3/4 x          Subtract 4/7 x from both sides

3/4 x - 4/7 x = 70 cm^3          The lowest common denominator is 28

5x = 70*28

5x = 1960                                Divide by 5

x = 1960/5

x = 392 cc

Step-by-step explanation:

The difference of 3/4 and 4/7 of the volume is 70 cm:

5/28 of the volume is 70 cm³

Divide both numbers by 5/28 to find the total volume of the glass:

side side side

side angle angle

angle side angle

side angle side

step-by-step explanation:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb