4. 55 + 0.65*55 = $90.75
5. 90.75 * 0.25*90.75 = $113.44
6. 113.44 - 0.33*113.44 = $76.00
Answer:
62 is your answer
Step-by-step explanation:
6 × (36 ÷ 12)² + 8, you can also write 36 ÷ 12 as a fraction, which would look like this: 36/12
Step 1: 6 × 36/12² + 8 = 6 × 3² + 8
Step 2: Multiply 6 and 9
(6)(9)+8 = 54+8
Step 3: Then you add 54 and 9 and you get 62
Answer: 62
The function that describes his distance from the finish line is f(x) = - 1/3 x + 5 the correct answer between all the choices gives is the first choice or letter A
Answer:
x = -41
y = 9
Step-by-step explanation:
Begin by multiplying the top equation by 2
2x = -8y - 10
The second equation requires a little more care.
Start by moving 10y to the right. Normally the y value is on the left, but we are going to be substituting for 2x.
2x = - 10y + 8
What I've done is not the usual practice, but there is nothing wrong with it.
Now since both right sides are equal to 2x, you can substitute for them
-8y - 10 = -10y + 8 Add 10y to both sides
-8y + 10y - 10 = 8
2y - 10 = 8 Add 10 to both sides
2y = 8+10
2y = 18 Divide by 2
y = 18/2
y = 9
Use the second original equation to solve for x
2x + 10y = 8
2x + 10*9 = 8
2x + 90 = 8 Subtract 20 from both sides
2x = 8 - 90
2x = - 82 Divide by 2
x = -822/2
x = - 41
5x + 13y = -13
13y = -5x - 13
y = -5/13x - 13/13
y = -5/13x - 1
Slope = -5/13
y-intercept = -1
