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
mrs_skeptik [129]
2 years ago
15

John has 30 marbles , 18 of which are red and 12 of which are blue. Jane has 20 marbles, all of them either red or blue. If the

ratio of the red marbles to the blue marbles is the same for both John and Jane, then John has how many more blue marbles than Jane?
Mathematics
1 answer:
morpeh [17]2 years ago
4 0
12/30 = percentage of blue marbles = 40%
40% of 20 =8
12-8 =4
John has 4 more blue marbles
You might be interested in
Find the average distance each data value in the set is from the mean. Round your answer to the nearest tenth, if necessary. Pri
sineoko [7]

Answer:

The average distance of each observation from the mean is 0.                

Step-by-step explanation:

We are given the following in the question:

$7, $20, $9, $35, $12, $15, $7, $10, $20, $25

Formula:

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{160}{10} =16

Difference from the mean value of each term:

-9, 4, -7, 19, -4, -1, -9, -6, 4, 9

Average distances =

\text{Average distance} =\displaystyle\frac{0}{10} =0

Thus, the average distance of each observation from the mean is 0.

3 0
3 years ago
4x + y = 7 find the slope and write the equation <br><br> PLEASE HELP!!!!!
Alexus [3.1K]

Answer:

3

Step-by-step explanation:

4x + 3 = 7

6 0
3 years ago
I need help with 1 and 3 please
schepotkina [342]
For #1
city A's mean would be 10.5, then you would divide it by the number of numbers there is which is 5,So 10.5/5 is 2.1

city B's mean would be 11.6  then you would divide it by the number of numbers there is which is 5, So 11.6/5 is 2.32.

thats all I have don't know how to do #3 sorry 
4 0
3 years ago
CAN SOMEONE PLEASE HELP ME WITH THIS ONE I DONT KNOW IF I’m right or no
Arturiano [62]

Answer:

Your right

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Write y=-1/2x+1 in standard form using integers
dimaraw [331]
X + 2y = 2

If you need an explanation, let me know. 
4 0
3 years ago
Read 2 more answers
Other questions:
  • Item 16
    9·2 answers
  • Whats 4.288 to the nearest hundreth?
    8·2 answers
  • Which of the following statements must be true about this diagram check all that apply help asap
    14·1 answer
  • 5/9 - 2/6 ????????????
    11·1 answer
  • In June 2012, Twitter was reporting 400 million tweets per day. Each tweet can consist of up to 140 characters (letter, numbers,
    10·1 answer
  • What is the degree measure of b?<br> A)) 29° <br> B) 32° <br> C) 61° <br> D) 64°
    12·2 answers
  • PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER!!
    10·2 answers
  • 4(2y+3)-2*2. Y=3 <br> Pls help
    13·2 answers
  • Which fact helps you prove the isosceles triangle theorem, which states that the base angles of any isosceles triangle have equa
    8·2 answers
  • What is the solution for this system of equations:<br> y = 1/2 x + 1<br> x + y = 16
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!