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
rusak2 [61]
3 years ago
12

In a box of marbles, the ratio of red marbles to total marbles is 2:5. the ratio of green marbles to total marbles is 3:10. if t

he marbles that are neither red nor green are blue, how many blue marbles are in the box if there are 40 marbles in the box?
Mathematics
1 answer:
STALIN [3.7K]3 years ago
7 0
Ratio:

Red : Total 
  2   :    5
 (x2)    (x2)
  4   :   10

Green : Total
  3   :       10

Total of red and green marbles = 4 + 3 = 7

Blue marbles = 10 - 7 = 3

10 parts = 40 marbles
1 part = 40 ÷ 10 = 4
3 parts = 4 x 3 = 12

Answer: There are 12 blue marbles.
You might be interested in
find the area of the figure below, composed of a rectangle and semicircle. Round it to the nearest tenth.
Alexandra [31]

Answer:

Step-by-step explanation:

radius of semicircle = 5

area of semicircle = πr² = 25π

area of rectangle = 10×14 = 140

total area = 140 + 25π ≅ 218.54 square units

5 0
3 years ago
Wht are the next three terms in the sequence -3 6 15 24
kogti [31]
6--3=9
15-6=9,
so
24+9=33,
33+9=42,
42+9=51
33,42,51
4 0
3 years ago
Read 2 more answers
Please help 10 POINTS!!!
iVinArrow [24]
(-5,-1)

Would be ur answer!!

Hope u have a great day beautifulll
3 0
2 years ago
Please answer this correctly
sesenic [268]

Answer:

  0

Step-by-step explanation:

The sorted data set is ...

  1 2 3 3 5 7 8 9

The median is the average of the middle two numbers: (3+5)/2 = 4.

Replacing one of the 3s with a 1 makes the data set be ...

  1 1 2 3 5 7 8 9

The average of the middle two numbers is (3+5)/2 = 4.

The median increases by 4 - 4 = 0.

7 0
3 years ago
Find the 90 th derivative of the function ƒ(x)=cos(x)
Inessa [10]
F(x) = cos x
f'(x) = -sin x
f''(x) = -cos x
f'''(x) = sin x
f''''(x) = cos x

90/4 = 22 Remainder 2
Therefore, 90th derivative of f(x) = cos x is -cos x.
5 0
3 years ago
Other questions:
  • The bacteria starts at 2million.The doctor prescribes an antibiotic that reduces the bacteria population to 1/4 of its size each
    14·1 answer
  • Solve for x: 0.2(2x-1)=0.2+0.08<br> A.1.4<br> B.5<br> C.2<br> D.0.3
    8·1 answer
  • Please please please help me with this answer
    7·1 answer
  • Solve for x.<br> 4x - 4 &lt;8<br> AND 9x + 5 &gt; 23
    6·2 answers
  • Mrs. Freitas cut a watermelon into 12 pieces. Ana ate 2 pieces of
    10·1 answer
  • Choose the correct graph for the equation y=2x+3
    12·2 answers
  • The values of x and y are proportional. Determine the constant of proportionality(k)
    11·1 answer
  • Please help me please help me please help me
    7·1 answer
  • PLSSS HELP IF YOU TURLY KNOW THISS
    12·1 answer
  • Average health premiums have been increasing at a rate of 7%. If an average family's
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!