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
Lapatulllka [165]
2 years ago
11

A​ student's cost for last semester at her community college was ​$2000. She spent ​$280 of that on books. What percent of last​

semester's college costs was spent on​ books?
Mathematics
1 answer:
Usimov [2.4K]2 years ago
8 0

Answer:

14%

Step-by-step explanation:

A way I usually do it is with a fraction setup.

280/2000 = ?/100

multiply 280 by 100, and you get 28000. divide this by 2000, and you get 14!

You might be interested in
1) In 2010, the continent of South America had a
Westkost [7]

Answer:

4x109

Step-by-step explanation: 4x109=436 and that is the closest to that number.

3 0
3 years ago
Can someone please answer this m
sweet-ann [11.9K]

Answer:

5^-4

1 / 5^4

Step-by-step explanation:

5^3  / 5^7

We know a^b  / a^c  = a^(b-c)

5^(3-7)

5^-4

If you are not allowed to have negative exponents

We know a^-b = 1/a^b

1 / 5^4

7 0
2 years ago
Describe and correct the error a student made in writing an exponential function
NemiM [27]

Answer:

we CANNOT DIVIDE 3 with 6.

Step-by-step explanation:

Here,as given in the question:

Starting value = 6

Constant ratio = 1/3

Now, exponential function is obtained by the product of starting value and the constant ratio repeatedly.

⇒ f(x) = (Starting value) x (ratio)... x times

\implies f(x) = 6 (\frac{1}{3} )^x =  6 (\frac{1}{3} )  (\frac{1}{3} )  (\frac{1}{3} )  .... x  

Now, we CANNOT DIVIDE 3 with 6 as it is in the power of x.

Hence, \implies f(x) = 6 (\frac{1}{3} )^x and f(x)  \neq 2^x

4 0
3 years ago
1. Based on data collected over several sessions, a statistically minded trainer of office typists modeled the linzoom in
ipn [44]

Answer:

Statement D is correct.

Step-by-step explanation:

Solution:

Data Given:

Linear Regression Relationship = Speed = 10.3 + 5.4 (hour)

Linear Regression Relationship = y = mx + c

Here,

m = slope = 5.4

c = 10.3 = y - intercept

The correct Answer is D)

Because:

As, the residual value is positive, it means the typist attained faster speed than the model predicted. As we know, residuals is the result of difference between predicted values of the model and data values. On the contrary, if residual would be negative then we would say that typist speed is slower than the model predicted.

Hence, Statement D is correct.

6 0
3 years ago
What is the slope of the line that passes through the points (-1, -10)(−1,−10) and (-1, -2) ?(−1,−2)? Write your answer in simpl
USPshnik [31]

Answer:

undefined

Step-by-step explanation:

We can find the slope of the line using

m = (y2-y1)/(x2-x1)

    = (-2 - -10)/(-1 - -1)

     = (-2+10)/(-1+1)

     = 8/0

When we have a 0 in the denominator the slope is undefined

3 0
3 years ago
Other questions:
  • The table shows the hourly cookie sales by students in grades 7 and 8 at the school's annual bake sale. Grade 7 Grade 8 20 21 15
    7·1 answer
  • If a + b = c and b = 5, then a + 5 = c is known as the ________ property. Question 18 options: A) substitution B) symmetric C) t
    6·2 answers
  • melissa wants to cover her square tabletop with a tablecloth. the area of the table is 144². which of the following tablecloth l
    6·2 answers
  • Please help!!! I will give brainliest to the person who explains it
    9·1 answer
  • -2/9 - (-3)<br><br><br>I Need Help
    10·1 answer
  • PLEASE ANSWER!!! First answer gets brainliest!!!!! RIGHT ANSWERS ONLY!
    15·1 answer
  • Which number line represents 3-5?
    10·1 answer
  • Pleaseeeee help me!!!!
    7·1 answer
  • Please help!!! 10 point for it :)
    10·1 answer
  • Work out m and c for the line:<br> 2x + 3y +1=0 <br><br>m=<br>c =​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!