Answer:
Step-by-step explanation:
(3x^2 + 2x) + (-x + 9) Remove the brackets
3x^2 + 2x - x + 9 Watch out for the sign in front of the x
3x^2 + x + 9 No more reduction can take place.
(-2x^2 + 5x - 7) + (3x + 7) Remove the brackets
-2x^2 + 5x - 7 + 3x + 7
-2x^2 + 5x + 3x - 7 + 7 Combine
-2x^2 + 8x The 7s cancel -- they are of opposite signs.
No more reduction can take place. The powers on the variables have to be equal before any cancelation can take place.
let second account initial amount be x,
first account initial amount = x - 5
after a month,
first account = 3 (x - 5)
= 3x - 15
second account = 2x
3x - 15 = 2x
x = 15
original in first account = 15 - 5
= $10
original in second account = $15
Answer:
The width is 10cm and the length is 50cm.
The top and bottom sides are each 50 cm, and the right and the left side of the rectangle is 50cm. Which means, if you multiply 50 by two, and 10 by two, then add them together, you will get the perimeter of 120 cm. Formula of Perimeter: Length + Length + Width + Width = Perimeter
I found the answer by multiplying the width (10cm) by 2. I then got 20. After that I subtracted 20 from the perimeter and got 100. Then, I divided that by 2 and got the length of each of the sides which is 50cm.
I think it’s 0.1
1 pizza divided 10 slices = 0.1