<span>-7(7m-4)=77
Use distributive property(Multiply -7 by 7m and -4)
-49m + 28= 77
Subtract 28 from both sides
-49m= 49
Divide -49 on both sides so that the only thing remaining on the left side is the variable m.
Final Answer: m = -1</span>
Answer:
-34
Step-by-step explanation:
a + b = -6
x + y + z = -2
We want 8a so multiply the first equation by 8
8( a + b) = -6*8
8a+8b = -48
We also want -7x so multiply the second equation by -7
-7(x + y + z) = -2*-7
-7x-7y-7z = 14
Add the two equations together
8a+8b = -48
-7x-7y-7z = 14
-------------------------
8a+8b-7x-7y-7z = -34
Rearranging the order
8a - 7x - 7z - 7y + 8b = -34
Answer:
for the 1st question she needs 27 more cups to get 30
Answer:
1 would: You dont have to pay anything because 80% of 750 is $150 which you also have to deduct $150 so you dont pay anything.
2: 90% of $575 is $517 so 58 dollars would be deducted.
Hope this helps:)
First we need to find 75% of $450, so 450x.75=337.5
to find the markup we have to add 450+337.5 to get $787.5.
