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3 years ago

It takes 28minutes for 7 people to paint 7 walls. How many minutes does it take 14 people to paint 14 walls?

Mathematics

1 answer:

charle [14.2K]3 years ago

7 0

Answer:

56 minutes

Step-by-step explanation:

14 people painting 14 walls is simply <em>double</em> (x2) 7 people painting seven walls.

We know this because 7 x 2 = 14

So, we will have to double the amount of time it takes them to paint.

28 x 2 = 56

It will take 56 minutes for 14 people to paint 7 walls!

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Alexus [3.1K]

Answer:

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2 years ago

Ruth found 37 tickets for $7. Please help Ruth by figuring out the ratio. (round to 2 decimal places)

Amanda [17]

Answer:

Ratio of ticket to its price is 1 : 0.189.

Step-by-step explanation:

Here, the cost of 37 tickets = $7

Let us find the unit cost of the ticket.

$\textrm{Unit Price } = \frac{\textrm{Total Price of n units}}{\textrm{n}}$

$\implies U = \frac{7}{37}=0.189$

So, the unit price of each ticket = $0.189

Now, ratio of Each Ticket: Unit Price = 1 : 0.189

Hence, the ratio of ticket to its price is 1 : 0.189.

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3 years ago

3y+4y+6=20 can someone please help me with this

Xelga [282]

3y+4y+6=20

(3y+4y)+(6)=20

(Combine Like Terms)

7y+6=20

Subtract 6 from both sides.

7y + 6 − 6 = 20 − 6

7y = 14

Divide both sides by 7.

7y/7 = 14/7

y = 2

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3 years ago

A pound of ground beef costs $5. At this rate, what is the cost of:

jeka94

Yes 12-14 is the answer hope this helps !!!

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3 years ago

Please help. Fill in the blanks

Anna [14]

Answer:

Step-by-step explanation:

1). 3x(2x - 2) = 3x(2x) + 3x(-2) [By distributive property]

2). x²(_ + 5x - 3) = (3)x² + x²(5x) + x²(-3)

3). _(x² - 3x + _) = x(x²) - (x)(-3x) + (x)(2)

4). (2x + 9)(x + 2) = 2x(x + 2) + 9(x + 2)

= 2x² + 4x + 9x + 18

= 2x² + 13x + 18

5). (z - 4)(2z + 1) = z(2z + 1) + (-4)(2z + 1)

= 2z² + z - 8z - 4

= 2z² - 7z - 4

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3 years ago