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3 years ago

PLEASE HURRY THANK YOU

Mathematics

2 answers:

natita [175]3 years ago

8 0

Answer:

B, 1/12

Step-by-step explanation:

The chance of rolling a three on a number cube would be 1/6, because there are six different possibilities that you could roll (1, 2, 3, 4, 5, or a 6) and only one of those possibilities would be a three.

The chance of flipping a coin and getting heads is 1/2, because there are two different possibilities that you could flip (heads or tails) and only one of those possibilities would be heads.

Since it asks for what the probability for doing BOTH of those things, you have to multiply them. Just multiply the numerators and denominators. For 1/6 x 1/2, you'd do 1 x 1 equals 1, so that would be the answer's numerator. Then you'd do 6 x 2, which equals 12, and that would be the answer's denominator. So, putting those two together, you'd get the answer of 1/12.

Archy [21]3 years ago

4 0

1/18

I am not 100% sure, but I think this is it. I hope this helps!

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Multiplying by 0.21 is the same as increasing by _____%.

Irina-Kira [14]

Answer:

20%

Step-by-step explanation:

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3 years ago

Emily's vacuum cleaner has a power rating of 200 watts. If the vacuum cleaner does 360000 joules of work, how long did Emily spe

MakcuM [25]

To answer this, we need to know the formula of the relationship between the work and the power rating and time.

The formula is:
E(J) = P(W) × t(s)
360000 = 200 * t
t = 360000 / 200
t = 1800 s

So, Emily will spend 1800 seconds in vacuuming. It is also equivalent to 30 minutes.

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3 years ago

Graph the parametric equations. x = 7 sin (t) + sin (7t) y = 7 cos (t) + cos (7t)

UkoKoshka [18]

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4 years ago

One photo shop charges $0.36 per print. Another photo shop charges $2.52 plus $0.08 per print. Juan finds that the cost of print

koban [17]

Juan have to print 9 photos.

Explanation

Suppose, Juan have to print $x$ number of photos.

First photo shop charges $0.36 per print. So, the total cost to print $x$ number of photos in this shop $=0.36x$ dollar.

Second photo shop charges $2.52 plus $0.08 per print. So, the total cost for printing $x$ number of photos $= (2.52+0.08x) dollar$

As, the cost of printing is the same at both shops, so.....

$0.36x=2.52+0.08x\\ \\ 0.36x-0.08x= 2.52\\ \\ 0.28x=2.52\\ \\ x=\frac{2.52}{0.28}=9$

So, Juan have to print 9 photos.

6 0

3 years ago

A car was sold at $34000. That price was 85℅ of the orginal price. What was the original price?

Art [367]

Hey there! The answer is $40000

A car was sold at $34000. That price was 85℅ of the orginal price.
When we know 85% of the original price we can find 1% of this price by dividing by 85.

1% of the original price = $34000 / 85 = $400
When we know 1% of the original price we can find 100% of this price by multiplying by 100.

100% of the original price = original price = $400 * 100 = $40000
The answer is $40000

~ Hope this helps you!

3 0

4 years ago