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madam [21]
3 years ago
9

Ronnie can paint 8 rocks in 5 minutes. How long will it take him to paint 54 rocks

Mathematics
2 answers:
sergiy2304 [10]3 years ago
3 0
8 rock in 5 minutes

54 rocks / 8 rocks = 6.75

6.75 x 5 minutes = 33.75 minutes
slavikrds [6]3 years ago
3 0

Answer:

33 minutes and 45 seconds.

Step-by-step explanation:

We can easily set up a proportion...

He can paint 8 rocks in 5 minutes. He can paint 54 rocks in x minutes.

\frac{8}{5} =\frac{54}{x}

8 * x = 54 * 5

8x = 270

4x = 135

x = 33.75

So, it will take Ronnie 33 minutes and 45 seconds to paint 54 rocks.

Hope this helps!

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Kryger [21]
Are there any numbers that go into 78 and 780?

78 ÷ 2 = 39
780 ÷ 2 = 390

2 can be a number that goes in 78 and 780.
7 0
3 years ago
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Determine the standard form of the equation of the line that passes through (0,5) and (4,0)
Alona [7]
(0,5)(4,0)
slope = (0 - 5) / (4 - 0) = -5/4

y = mx + b
slope(m) = -5/4
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now we sub and find b, the y int
5 = -5/4(0) + b
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3 0
3 years ago
PLEASE HELP FOR A COOKIE
nikdorinn [45]
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6 0
4 years ago
What is negative 9/14 plus 2/7
Sedaia [141]
Find the LCD of  9/14 and 2/7. LCD is 14.

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4 0
3 years ago
1. whats the midpoint between (7,3) and (-3,-1)
Elanso [62]

Answer:

(2, 1 )

Step-by-step explanation:

Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is

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Here (x₁, y₁ ) = (7, 3) and (x₂, y₂ ) = (- 3, - 1) , then

midpoint = ( \frac{7-3}{2}, \frac{3-1}{2} ) = ( \frac{4}{2}, \frac{2}{2} ) = (2, 1 )

5 0
3 years ago
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