1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yKpoI14uk [10]
3 years ago
13

jessie estimates the weight of her cat to be 8 pounds the actual weight was 10 pounds. find the percent error

Mathematics
1 answer:
seraphim [82]3 years ago
3 0

Answer: She was off by 25%

Step-by-step explanation: I used proportions to solve this. 100% and 8 are the same because 100% was what she thought the weight of the cat was. So this is one side of the proportion. The other side, we need a variable which is X. X is the unknown percentage. X is equal to 10. I then did 100% x 10 which is 1000 then divided it by 8 which is equal to 125%. 125% - 100% = 25%.

You might be interested in
What is the answer to 8+(-2)•9?
igomit [66]

Answer:

-10

Step-by-step explanation:

Use PEMDAS (Parenthesis, Exponents, Multiplication/Division, Addition/Subtraction)

8 + (-2) · 9

8 - 18

-10

7 0
4 years ago
Use the calculator to graph the function y = 2x2 25x + 3. What are the coordinates of the turning point of the graph to the near
olga2289 [7]

Use the calculator to graph the function y = 2x^2+ 25x + 3

In the graph , the coordinates of the vertex is the turning point of the graph.

Given function is the quadratic function. For quadratic function the graph will be U shaped parabola.

There will be only one turning point for parabola

Turning point is the vertex

To find vertex we use formula x= \frac{-b}{2a}

y = 2x^2+ 25x + 3

a=2, b= 35

x =\frac{-25}{2*2}  =\frac{-25}{4} = -6.25

Now plug in \frac{-25}{4} in f(x)

y= 2(\frac{-25}{4})^2+ 25(\frac{-25}{4})  + 3

Take common denominator

y= \frac{625}{8}+ (\frac{-625}{4})  + 3 =\frac{625-1250+24}{8} =-\frac{601}{8} = -75.125

So coordinates of turning point is (-6.25, -75.13)

The graph is attached below.

8 0
4 years ago
Read 2 more answers
Which expression is equivalent to the given expression?
Vika [28.1K]

Answer:

what is the answers

Step-by-step explanation:

if it is this then the answer is Which expression is equivalent to the given expression?

8(3/4a)−8

1. 3/4a

2. 6a

3. 8(3/4a - 1)

4. 3/4a -1

then it is 3333

5 0
3 years ago
You and your friend get the same magazine. You spend $15 for twelve issues. Your friend pays $1.50 per issue but gets the first
Allushta [10]
He will get 12 issues too. Since he spent 15 dollars  in total you would divide that by 1.50 to see how many he actually purchased and it comes out to 10 meaning that he got 10 issues with the money. Now he got two free issues so you would add them to the ones he purchased, so 10 + 2 which would equal 12. So in total he got 12 issues. I hope that helps and wasn't confusing.
8 0
3 years ago
Does anyone know this
maw [93]
The domain is the x-value of the line
Therefore since the point to the left is not filled in and the point to the right is filled in then your answer would be -11
8 0
3 years ago
Other questions:
  • 3. Repeat Exercises 1 and 2 to obtain a second sample of 40 coin flips.
    8·1 answer
  • What’s the answer to this? (geometry)
    10·1 answer
  • Dora earns an annual salary of $85,608. How much does she earn every month. A.$6,144. B. $7,134. C.$7,144. D. $7,234
    7·2 answers
  • What is X/3=3X-15/4<br> Please help me thanks
    8·1 answer
  • Two trains leave the station at the same time, one heading west and the other east. The westbound train travels at 55 miles per
    14·1 answer
  • If two of the four expressions x + y, x + 5y, x - y, and 5x - y are chosen at random, what is the probability that their product
    13·1 answer
  • Please help me I need help today thank you and please show work
    14·1 answer
  • Rayna paid a $200 fee to join a health club and then a $50 fee per month to use the club. The total amount of money (t) paid can
    10·1 answer
  • What does x equal 2x - 3 = 7
    10·1 answer
  • Find the equation of the line through point (8,−9) ( 8 , − 9 ) and perpendicular to 3+8=4 3 x + 8 y = 4 .
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!