Answer: it is D and if it is wrong then it doesn’t look like this question was finished.
Step-by-step explanation:
Answer:
19.20
Step-by-step explanation:
24%×80 = 24×80/100 = 1920/100 = 19.20
Answer:
34
Step-by-step explanation:
10/1×17/5
note: 10/1=10
10×17/5
multiply
170/5
34 ans
pls mark brainliest
-7x+y=42
y=42+7x
5x+13y=66
Substitute for y (meaning put 42+7x into the equation above instead of y because they are equal - see second line of my answer above)
5x+13[42+7x] = 66
5x +546 = 66
5x=66-546
5x=-480
x=-480/5
x=-96
can only be written as 
or as 
. One has the multiplication sign the other does not, which is why we put it together, because we know that if they are together they will be multiplied.
I hope this helps, if you have any other question on this or any other question, just ask. I am here to help.
