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 inverse of the function y = cube root (x/3)-1
lianna [129]
Hello here is a solution : 

4 0
3 years ago
Angle XYZ is rotated 270 degrees counterclockwise about the origin to form angle X’Y’Z’. Which statement shows the measure of an
Kruka [31]
Hi i a doing the same thing and i have the answer as a hope this helps
6 0
3 years ago
Given sin x = .24, find cos x
Nikolay [14]

Answer:

17?

Step-by-step explanation:

if i did it correctly it should be around that <3

4 0
3 years ago
Solve x^2 + 4x + 8 = 0
Mkey [24]

Answer:

x = -2 + 2 i or x = -2 - 2 i

Step-by-step explanation:

Solve for x:

x^2 + 4 x + 8 = 0

Subtract 8 from both sides:

x^2 + 4 x = -8

Add 4 to both sides:

x^2 + 4 x + 4 = -4

Write the left hand side as a square:

(x + 2)^2 = -4

Take the square root of both sides:

x + 2 = 2 i or x + 2 = -2 i

Subtract 2 from both sides:

x = -2 + 2 i or x + 2 = -2 i

Subtract 2 from both sides:

Answer:  x = -2 + 2 i or x = -2 - 2 i

8 0
3 years ago
Keith earns $40.00 in 4 hours. How much would he earn in 11 hours?
aivan3 [116]

$110.00

bc for every hour its $10

hope i helped :)

6 0
3 years ago
Other questions:
  • Assume that the growth rate of a population of ants is proportional to the size of the population at each instant of time. Suppo
    13·1 answer
  • 14 is away from the other data. What is 14 called?
    6·1 answer
  • Find the selling price of a comic book with an original price of $3.95 and a 20% markup. please be specific on how the answer is
    6·1 answer
  • The girls on the run is 3 miles long. jenna has run 3/5 of the race. how far has she run?
    14·2 answers
  • The equation a = 640s gives the relationship between s square miles and a acres. James owns 2.5 square miles of farmland. How ma
    10·2 answers
  • Given a dilation where k=2, would the image be an enlargement or a reduction?
    14·1 answer
  • Tan C= <br> Help help help
    9·2 answers
  • If n(A)=40,N(B)=60AND N(AUB=80​
    11·1 answer
  • Ol-
    10·1 answer
  • Your cousin's age is the cube of your little sister's age. If your
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!