Answer:
Ok so the b is a coefficient which means it needs to be replaced by a number.
The 7 is gonna be multiplied by that coefficient then subtracted by 3.
Hope this helped.
Step-by-step explanation:
Step-by-step explanation:
Assuming the speed of car B to be x and the speed of car A to be x+20
<u>1</u><u>5</u><u>6</u> = <u>2</u><u>0</u><u>8</u>
x. x+20
156(x+20)= 208x
156x+3120=208x
3120=208x-156x
3120=52x
x=60
The speed of car A is (x)= 60
The speed of car B is(x+20)= 80
Answer:
7x² + x + 3
Step-by-step explanation:
Step 1: Write expression
(3x² - 2x + 1) + (4x² + 3x + 2)
Step 2: Combine like terms
7x² + x + 3
Answer:
3%
Step-by-step explanation:
This equation represents exponential decay. Whenever the base is less than 1, the function represents decay. When the base is greater than 1, the function represents growth. In this case, the base is .97 which is less than 1, representing decay.
The formula for exponential decay is y=a(1-r)x.
r is the decay rate, expressed as a decimal.
In this case, r = .03 which represents 3%!
