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3 years ago

A bottle contains red beads and white beads.

1 answer:

4 0

Start by multiplying the amount of white beads by 3 (there are 3 times more red than white!)

1,875 * 3 = 5,625 red beads.

Well, to find the TOTAL number of beads (red AND white), add the red beads (5,625) and the white beads (1,875).

5,625 + 1,875 = 7,500

So the answer is 7,500 beads (:
Hope this helped!

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How do I solve 2cos(x)=2sin(2x)

Vedmedyk [2.9K]

2cosx=2sin2x. Sin2x is an identity for 2sinxcos. So 2[2sinxcosx] gives you 4sinxcosx. 2cosx=4sinxcosx. Divide 2cosx on both sides and gives you 2sinx=0 and divide again, sinx=0. Sinx is 0 at 0 and 360 degrees, or pi and 2pi. So thats what x would be. 0,360,pi,2pi.

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3 years ago

What is the approximate volume of the cone? use 3.14 for

Natali5045456 [20]

Answer:

157 cm²

Step-by-step explanation:

volume = (1/3) * π * r² * h

volume = (1/3) * π * 5² * 6

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3 years ago

What is the answer to this question

Ivanshal [37]

Answer:

-(4,-3)

Step-by-step explanation:

You need to find the slope from point o to b, and then multiply it three times to get to b prime.

5 0

3 years ago

Read 2 more answers

A jar contains n nickels and d dimes. There are 24 coins in the jar, and the total value of the coins is $1.90. How many nickels

oee [108]

Answer:14 dimes 10 nickels

Step-by-step explanation:

24 coins total

14 X.10 = 1.40

10 x .05 = .50

1.40 + .50 = 1.90

3 0

3 years ago

A cash register contains $10 bills and $20 bills with a total value of $520. If there are 32 bills total, then how many of each

ohaa [14]

12 is the number of $10 bills

20 is the number of $20 bills

Step-by-step explanation:

Hello,

Let's note

a the number of $10 bills

b the number of $20 bills

The total value is $520 so we can write the first equation (1)

$\boxed{\sf 10a \ + \ 20b \ = \ 520 }$

We know that there are 32 bills in total so we can write the second equation (2)

$\boxed{\sf a \ + \ b \ = \ 32 }$

(1) - 10*(2) gives

10a + 20b - 10(a+b) = 520 - 320 = 200

10a + 20b - 10a - 10b = 10b = 200

So b = 200/10=20

and then from (2) a = 32 - 20 = 12

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

7 0

3 years ago