No.
you need a common denominator when you ADD fractions, but not when you multiply.
Answer:
30x-15y
Step-by-step explanation:
5 * 6x = 30x
5 * -3y = -15y
Answer:
Step-by-step explanation:
a. x - x + 5 = -4
5 ≠ -4
b. 2x - 2x + 5 = 5
5 = 5
infinitely many solutions
1. P = IRT....for T
P / (IR) = T
2. A = 2(L + W)....for W
A/2 = L + W
(A/2) - L = W
3. y = 5x - 6...for x
y + 6 = 5x
1/5y + 6/5 = x....or (y + 6)/5 = x
4. 2x - 3y = 8....for y
-3y = -2x + 8
y = 2/3x - 8/3
5. not exactly sure of the equation here.....(x + y) / 3 = 5 ?? or 3(x + y) = 5 ??
6. y = mx + b....for b
y - mx = b
7. ax + by = c....for y
by = c - ax
y = (c - ax)/b...or y = (c/b) - (ax/b)
Answer:
3.9 * 10^-2
Step-by-step explanation:
We need a number between 0 and 10, so we need to multiply.
0.039 * 10 = 0.39
0.39 * 10 = 3.9
Since 0.039 is less than 0, we are going to have a negative exponent.
3.9 * 10^-2
Best of Luck!
