Answer: I think the correct answer is B
Step-by-step explanation:
Answer:
8.11%
Step-by-step explanation:
We need to find the percentage error. We can follow the formula shown below:
Where
PE is the Percentage Error
New is the newest measure (given as 20 feet)
Orig is the original, or first, measure (given as 18.5)
Substituting and finding the PE:
Tagging the percentage , percent error is about 8.11%
Joylin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. She knows that the total cost to download 3 videos was $12. Her work to find the equation is shown below. Joylin’s Work Step 1 x=3/12=0.25 Step 2 y=0.25x Where did Joylin make her first error? Joylin divided 3 and 12 instead of multiplying the two numbers. Joylin computed the decimal equivalent of 3/12 incorrectly. Joylin used 0.25 as the coefficient of x instead of a product of x and y. Joylin switched the numerator and the denominator when she found k.
Solution:
Joylin switched the numerator and the denominator when she found k.
Joylin should divide 12/3 and not 3/12. As, y is total cost and x is number of videos.
For x=1, number of videos=1, y,or total cost=1*4=4,
For x=2,y=2*4=8
For x=3, y=3*4=12
So, the constant, k=4
So, Answer: Option (D)
Joylin switched the numerator and the denominator when she found k.
6. 25/(-5)=-5
7. 10-13=-3
8. 21-47=-26
9. -19+4=-15
10. -17+2=-15
11. -8-5=-13
12. -12-3=-15
Hope I didn't mess up for your sake.
Answer: The y-intercept is an (x,y) point with x=0
Step-by-step explanation:
