8.1• 10^10. U need to move the decimal to the right 10 places. Then compare from the other things from the problem.
Answer:
The answer is 45
Step-by-step explanation:
The equation is a straightforward one, we have:
2/3x = 30
because we have a fraction on at least one side, we will cross multiply thus:
2x = 30 x 3
2x = 90
Next, we divide both sides by 2 to make x the subject of the formula, we have 2x/2 = 90/2
x = 45
Therefore, it takes Ingrid 45 minutes to complete her essay
Answer:
Hey there!
3x+y=7
2x+y=6
3x+y=7
-2x-y=-6
Add these two equations vertically so the y terms cancel out (this is known as the elimination method)
x=1
3x+y=7
3(1)+y=7
3+y=7
y=4
(x=1, y=4)
Hope this helps :)
