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son4ous [18]
3 years ago
13

Pls help me with this question​

Mathematics
1 answer:
Ugo [173]3 years ago
8 0
The solution to the given question is here , sry for having bad handwriting but its solved . If u don’t understand the solution then u can ask me again
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In this line of circles, the ratio of red circles to blue circles is 1:3 How many more circles would need to be added to make th
zaharov [31]

Answer:

The number of red circles to be added would be equal to 8 times the original amount of red circles

Step-by-step explanation:

Let

x ----> the number of red circles

y ----> the number of blue circles

Originally

\frac{x}{y}=\frac{1}{3}

y=3x ----> equation A

How many more circles would need to be added to make the ratio of red to blue 3:1

Let

n ----> the  number of additional red circles

\frac{x+n}{y}=\frac{3}{1} ----> equation B

substitute equation A in equation B

\frac{x+n}{3x}=\frac{3}{1}

solve for n

x+n=9x\\n=9x-x\\n=8x

therefore

The number of red circles to be added would be equal to 8 times the original amount of red circles

5 0
3 years ago
What is the position of D on the number line below?
Vesnalui [34]

Answer:

1 3/5

Step-by-step explanation:

The distance between 1 and 2 is 5 units. Therefore, Point D is 3/5 of the way to 2.

3 0
2 years ago
Read 2 more answers
4th term of an arithmetic sequence is 23 and its 11th term is 65, what is its common difference​
Rudik [331]

Answer:

d = 6

Step-by-step explanation:

The nth term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₄ = 23 and a₁₁ = 65 , then

a₁ + 3d = 23 → (1)

a₁ + 10d = 65 → (2)

Subtract (1) from (2) term by term to eliminate a₁

10d - 3d = 65 - 23

7d = 42 ( divide both sides by 7 )

d = 6

5 0
3 years ago
A EZ one<br> ......<br> (^.^) pt 4
IrinaK [193]
D, it makes the most sense
4 0
3 years ago
Read 2 more answers
What's the difference between radius and diameter?
Andreas93 [3]
Diameter is from one side of the circle to the other through the middle
and the radius the from the middle to the edge of the circle
so radius is half the diameter
7 0
3 years ago
Read 2 more answers
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