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
kogti [31]
3 years ago
7

In the seventh grade , Rachel read 15 books. In eighth grade , she read 18 books. Find the present of increase in the number of

books Rachel read
Mathematics
1 answer:
qaws [65]3 years ago
6 0
I'd say what you would do is: You can either 1. Add 15 and 18 together and then divide by 2 OR 2. Since there is a 3 number difference between 15 an 18, just add 3 to 18
You might be interested in
The frequency distribution shows the lengths, in inches, of available baseball bat at a batting cage. what is the mean of the fr
ivanzaharov [21]
The mean of a frequency distribution is given by
<span>
\bar{x}= \frac{\Sigma fx}{\Sigma f} \\  \\  = \frac{(27\times2)+(28\times5)+(31\times3)+(33\times1)+(34\times4)}{2+5+3+1+4} \\  \\  = \frac{54+140+93+33+136}{15} = \frac{456}{15} =30.4</span>
6 0
3 years ago
You manage an ice cream factory that makes two flavors: Creamy Vanilla and Continental Mocha. Into each quart of Creamy Vanilla
Mars2501 [29]

Answer:

You should make 250 quarts of Creamy Vanilla and 200 of Continental Mocha to use up all the eggs and cream.

Step-by-step explanation:

This problem can be solved by a first order equation

I am going to call x the number of quarts of Creamy Vanilla and y the number of quarts of Continental Mocha.

The problem states that each quart of Creamy Vanilla uses 2 eggs and each quart of Continental Mocha uses 1 egg. There are 700 eggs in stock, so:

2x + y = 700.

The problem also states that each quart of Creamy Vanilla uses 3 cups of cream and that each quart of Continental Mocha uses 3 cups of cream. There are 1350 cups of cream in stock, so:

3x + 3y = 1350

Now we have to solve the following system of equations

1) 2x + y = 700

2) 3x + 3y = 1350

I am going to write y as function of x in 1) and replace it in 2)

y = 700 - 2x

3x + 3(700 - 2x) = 1350

3x + 2100 - 6x = 1350

-3x = -750 *(-1)

3x = 750

x = 250

You should make 250 quarts of Creamy Vanilla

Now, replace it in 1)

y = 700 - 2x

y = 700 - 2(250)

y = 700 - 500

y = 200.

You should make 200 quarts of Continental Mocha

7 0
3 years ago
Find r <br> 0.5(r+2.75)=3
Alekssandra [29.7K]

Answer:

r=3.25

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
PLEASE HELP IM OFFERING 15PTS AND BRAINLIEST ANSWER. PLEASE SHOW YOUR WORK
Murljashka [212]
I need to se the blanket to answer
8 0
3 years ago
On a cordinat grid point n is at -2 4 and point a it at 6 4 the distance in units between n and s is
UkoKoshka [18]

Answer:

Its 7

Step-by-step explanation:

7

6 0
2 years ago
Other questions:
  • Sadie is saving her money to buy a new pony, which costs $600. She has already saved $75. She earns $50 per week working at the
    13·1 answer
  • A tool set is on sale for 424.15$. The original price set was 499.00$. What percent of the original price is the sale price?
    15·2 answers
  • PLEASE HELP!!
    13·1 answer
  • What can you tell about the mean of each distribution? Help plz for real!!
    13·1 answer
  • I really need help !!! Will MARK BRAINLIEST!!!
    10·2 answers
  • A baseball is hit and its height is given by h = 29.4t – 4. 9t^2, where h is the
    5·2 answers
  • HELP ASAP 30 POINTS WORTH !!!!! OωO
    8·2 answers
  • Someone help fast!!<br> please
    13·1 answer
  • Alyssa is learning to drive her parents' car. • • • • She increases her speed for 20 seconds. She slows down for 10 seconds. She
    12·1 answer
  • Consider the sets A = {4,6,8} and B = {4,5,6} Find Ax B (b) Find the power set AB)​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!