Ask question

Ask question

All categories

Svetllana [295]

3 years ago

15

Two coins have a radii of 3 cm and 1 cm the smaller coin rolls along the circumference of the fixed larger coin until the smalle

r coin returns to its original position. How many revolutions has the small coin made?

1 answer:

dezoksy [38]3 years ago

6 0

I think you have to do 3cm/1cm

I think the small coin makes 3 revolution

You might be interested in

the ratio of black bags to blue bags is 5 to 3. If there are a total of 185 black bags, then how many blue bags are there?

nlexa [21]

Answer:

There are 111 blue bags

Step-by-step explanation:

Let

x ----> the number of black bags

y ---> the number of blue bags

we know that

$\frac{x}{y}=\frac{5}{3}$

isolate the variable y

$y=\frac{3}{5}x$ -----> equation A

$x=185$ ----> equation B

substitute equation B in equation A

$y=\frac{3}{5}(185)$

$y=111$

therefore

There are 111 blue bags

8 0

3 years ago

(__)^2=(csc x-1)(csc x+1)

Aleksandr [31]

(csc x-1)(csc x+1)=csc²x-1²=csc²x-1=(1/sin x)² -1=1/sin x² - sin²x/sin²x=
=(1-sin²x)/sin² x = cos² x/ sin² x = (cos x/sin x)²= (cot x)²

8 0

3 years ago

Read 2 more answers

Solve the equation. (find x)

Irina-Kira [14]

Answer:

Step-by-step explanation:

$(x^2-3x+1)^{(2x^2+x-6)}=1\ we \ take \ the \ logarithm\\\\(2x^2+x-6)*ln(x^2-3x+1)=0\\\\(2x^2+x-6)=0\ or\ x^2-3x+1=1\\\\1)\\2x^2+x-6=0\\2x^2+4x-3x-6=0\\2x(x+2)-3(x+2)=0\\(x+2)(2x-3)\\x=-2\ or\ x=\dfrac{3}{2} \\\\2)\\x^2-3x=0\\x(x-3)=0\\x=0\ or\ x=3\\\\sol=\{-2,0,\dfrac{3}{2},3\}\\$

8 0

3 years ago

The graph of a proportional relationship passes through (4, 32) and (1, y). Find y.

Margaret [11]

Answer:

69

Step-by-step explanation:

7 0

2 years ago

Angie baked 100 cookies and 20 brownies . she wants to split them into equal groups for the bake sale . each group must have the

Rainbow [258]

I would say for every 1 brownie, there are 5 cookies.

7 0

2 years ago

Read 2 more answers