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
DanielleElmas [232]
3 years ago
7

The ratio of the radii of two circles is 2:3. The diameter of the smaller circle is 15 mm. What is the length of the diameter of

the larger circle?
Mathematics
2 answers:
ra1l [238]3 years ago
7 0

Answer:

the answer is c 22.50

Step-by-step explanation:

i just took the test on ed and got it right

mixer [17]3 years ago
5 0
The answer is 11.25 mm.

A diameter of a circle is twice of its radius: d = 2r    ⇒ r = d/2

small circle                                       large circle
radius: r1                                           radius: r2 = ?
diameter: d1 = 15 mm
⇒ r1 = d1/2 = 15/2 mm

Since t<span>he ratio of the radii of two circles is 2:3, we have:
r1 : r2 = 2 : 3
which can also be expressed as:
</span>\frac{r1}{r2}= \frac{2}{3}
<span>
We know that r1 is 7.5, so let's implement it:
</span>\frac{7.5}{r2} = \frac{2}{3}

Let's multiply both sides of the by 3r2:
3r2* \frac{7.5}{r2} =3r2* \frac{2}{3}
⇒ 3 * 7.5 = 2*r2
     22.5 = 2*r2
⇒ r2= \frac{22.5}{2} =11.25 mm

You might be interested in
Solve: 6x-9 = 3x<br> A x = 3<br> B x=1<br> C x = -1<br> D X=-3
Bumek [7]

Answer:

Answer is A, A=3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
If I drive 70 miles per hour for eight and a half hours, how far will I have driven
Deffense [45]
Just do 70 times 8.5
6 0
3 years ago
Read 2 more answers
Given that x is an integer, what is the solution of <br>|x-1|<img src="https://tex.z-dn.net/?f=%20%5Cleqslant%201" id="TexFormul
Varvara68 [4.7K]

Answer:

see explanation

Step-by-step explanation:

Inequalities of the type | x | ≤ a always have solutions of the form

- a ≤ x ≤ a

Given

| x - 1 | ≤ 1 then

- 1 ≤ x - 1 ≤ 1 ( add 1 to each of the 3 intervals )

0 ≤ x ≤ 2

Since we require an integer solution then x = 0, 1, 2

5 0
2 years ago
How many total possible outcomes are there in the sample when you are flipping 3 coins: a penny, a nickel, and a dime?
photoshop1234 [79]
8 because when you flip one coin there is 2 outcomes: heads and tails. Therefore if you flip 3 of them it is 2*2*2=8
7 0
2 years ago
Chase collects $27.34 for a fundraiser Sydney collects$9.83 more than Chase ally collects 4times as much as Sydney. how much doe
adelina 88 [10]
So Chase has $27.34.
You add $27.34 to $9.83. (Which is $37.17).
That will give you the amount of how much Sydney has.
To find how much Ally has you times $37.17 by 4.
Basically, you are doing $37.17 + $37.17 + $37.17 + $37.17.
When you have finished adding them you will get the answer.
So the answer is $148.68
8 0
3 years ago
Read 2 more answers
Other questions:
  • David has 85 white eggs and 28 brown eggs. He puts 6 eggs into each tray and fills as many trays as he can. How many eggs are le
    14·1 answer
  • Ratios with the same denominator of 2:3 and 3:4
    12·1 answer
  • Juan ran the lemonade stand for 3 more days
    15·1 answer
  • Volume of a sphere r=5​
    5·1 answer
  • I need help solving this problem
    12·1 answer
  • Explain the relationship between the oort cloud and comets
    9·1 answer
  • What expression is equivalent to 4(2x+7)
    9·1 answer
  • write a system of equations for the problem, and then solve the system. if a plane can travel 340 miles per hour with the wind o
    11·1 answer
  • Anyone wanna t.alk? i am b..ored​
    9·2 answers
  • What is the tangent<br> ratio of angle C₂ ?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!