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4 years ago

HELP please only have a couple of minutes.

Mathematics

1 answer:

Aliun [14]4 years ago

5 0

Answer:

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1. (3x + 7) + (8x + 2)

Mashutka [201]

11x+9

Step by step:
Remove the parenthesis
3x+7+8x+2
Collect like terms
11x+7+2
Add 7+2
11x+9

5 0

3 years ago

Please help<br> will mark brainlyest

jeka57 [31]

Answer: 56

Step-by-step explanation: Since to other connecting degrees is 124, then you just need to take that away from 180 to get your answer.

4 0

4 years ago

if you actually know plz give an explanation to the answer so i know you aren't just answering for points, please help this is d

Kaylis [27]

Answer:

Step-by-step explanation:

Probability of getting 9 or 11 = 2 /6 =1/3

Probability of getting tails in coin = 1/ 2

Probability of getting 9 or 11 AND tails in coin toss = 1/2 * 1/3

= 1/6

4 0

3 years ago

3.484<br> + 17<br> What’s the answer?

VMariaS [17]

Answer:

504

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

It takes machine A x hours to manufacture a deck of cards that machine B can manufacture in y hours. If machine A operates alone

nlexa [21]

Answer:

The expression that shows how long the two machines will operate simultaneously is:

$\frac{y(100x-z)}{x+y}$

Step-by-step explanation:

We know that:

x: hours to manufacture a deck of cards for machine A

y: hours to manufacture a deck of cards for machine B

z: hours that machine A operates alone

The number of decks manufactured only by machine A is:

$\frac{z}{x}$

So, the remaining decks are given by:

$100-\frac{z}{x}=\frac{100x-z}{x}$

Then, the combined rate of machines A and B would be:

$\frac{1}{x} +\frac{1}{y} =\frac{x+y}{xy}$

The work-rate formula is:

$Amount= Rate \times Time$

Hence, the time that the two machines work simultaneously is:

$Time=\frac{Amount}{Rate}$

$Time=\frac{Amount}{Rate} =\frac{\frac{100x-z}{x} }{\frac{x+y}{xy} } ={\frac{100x-z}{x} \times \frac{xy}{x+y}=\frac{y(100x-z)}{x+y}$

3 0

4 years ago