Answer:
a) x = 13
b) x = 7
Step-by-step explanation:
A) Since they have the same base of 2 so
x + 4 + (-5) = 12
x - 1 = 12
x = 13
b) Since they have the same base of -3 so
8 + x + 4 = 19
x + 12 = 19
x = 7
In scientific notation :
32 million miles is 3.2 x 10 ^7 miles.
solution:
4/5 of $150
4/5 x 150
=120
so Pete saves $120 per week
(x + 7) (x - 4)
First, apply the FOIL method (a + b) (c + d) = ac + ad + bc + bd / Your problem should look like:
- 4x + 7x - 28
Second, gather the like terms. / Your problem should look like:
+ (-4x + 7x) - 28
Third, simplify. / Your problem should look like:
+ 3x - 28
Answer:
+ 3x - 28