Answer:
I think he made a mistake in the first one
Step-by-step explanation:
Answer:
$960
Step-by-step explanation:
take the total salary to be 100%, since the taxes are 20% subtract 20% from 100% to get 80% which will represent the left over after the taxes have been taken so say if 100%=$1200 what about 80% 80times 1200 then divide by 100.
Answer:
M=-3d+36
Thank you! I hope you have fun in math, although personally I hate it.
Answer:
4 and 15
Step-by-step explanation:
Let the two numbers be a and b.
The sum of the two is 19. Therefore:

One number (let's use a) is 7 <em>more</em> than twice the other. Thus:

Solve for the system of equations. Substitute the second equation into the first:

Subtract 7 from both sides:

Combine like terms:

Divide by 3:

So, b is 4.
And since they add up to 19, this means that a is:

So our numbers are 4 and 15
And we are done :)
Answer:
-6 and 7
Step-by-step explanation:
-6 and 7 multiply to be -42.
When you add the two values: -6+7=1
Their sum is 1!
Hope this helps