Answer: Students 1 and 3
Step-by-step explanation:
student 1=
- (5r+3s-1)=
-5r+3s-1=
the same answer as student 3
Answer:Let the two unknown numbers be x and y.
So, x-y=40 ........Equation 1
And 0.3(x)= 37.5/100 (y)
From equation 1, x=40+y
Now, multiply through by 100 in equation 2.
We have,
30x = 37.5 (y)
We can multiply through by 10 again,so that the number on the L.H.S becomes a whole number.
Therefore, we have
300x = 375 (y)
Put "x=40+y" in the equation above
That is, 300 (40+y) = 375 (y)
1200 + 300y = 375y
1200 = 375y - 300y
1200 = 75y
Divide both sides by 75 to get your y
Therefore, y =16
From equation 1, we had x= 40 + y
Therefore X = 40 + 16
X= 56
Therefore the two unknown numbers are 56 and 16 respectively.
Step-by-step explanation:
Answer:
-2x-4 is the answer
Step-by-step explanation:
................
I’m not great at explaining but I hope with the way I did the work explains.
Answer:
Step-by-step explanation:
(x + 22)/2 = 27
x + 22 = 54
x = 32
(y + 16)/2= 9
y + 16 = 18
y = 2
(32, 2)
