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m_a_m_a [10]
3 years ago
6

the dog needs a 1/3 of a cup of dog food each day. the bag holds 5 cups of dog food how many days will it last ?​

Mathematics
1 answer:
sleet_krkn [62]3 years ago
7 0

Answer:

15 days

Step-by-step explanation:

You have 5 cups of food, and you give him 1/3 a day.

So, <em>5 divided by 1/3</em>, which would get you 15 days. Or you could cross-multiply, meaning you multiply across, but in this case I just made them line up so you can see how to do it.(food)/(cupsperday) = 5/\frac{1}{3} \\OR\\\frac{(food)}{1}*(cupsperday) = \frac{5}{1} *\frac{3}{1}

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Karo-lina-s [1.5K]

Answer:

170.72

Step-by-step explanation:

to find the mean, we must add al the numbers and divide it by n

that is,

164,175,178,166,167,145,176,150,174,162,180,156,173,158,182,184,160,172,186,168,195,169,171,187,170 we have to add al these numbers and divide it by 25

sum- 4628 divided by 25

=170.72

7 0
2 years ago
Which graph has a correlation coefficient, r, closest to 0.75?
VikaD [51]

Answer:

option A

Step-by-step explanation:

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4 0
3 years ago
Solve the following equation, and explain your solution method.x³+7x²-x-7=0
Korvikt [17]

Answer:

x_{1}=-1\\ x_{2}=1\\ x_{3}=-7

Step-by-step explanation:

The easiest way to solve this equation is to first find and highlight a common factor between two terms. In this case, x^2 can be factored to rewrite the equation as follows:

x^{2} (x+7)-x-7=0\\x^{2} (x+7) = (x+7)

The (x+7) term can be crossed out on both sides and then for this equation to be true, there are two possibilities:

Either

x^{2} =1\\x_{1} = 1\\x_{2} = -1

or

(x+7) = 0\\x_{3} = -7

Therefore, the solutions to this equation are -1, 1 or -7.

7 0
3 years ago
What is the volume of a cone if the diameter is 5 and the height is 13?
Ymorist [56]

Answer:

85.095cm³

Step-by-step explanation:

Volume of cone is ¹/³ πr ²h

volume = ¹/³ x 3.142 x (2.5)² x 13

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6 0
3 years ago
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BaLLatris [955]

Answer:

250

Step-by-step explanation:

copper: zinc : total

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We have 750 brass

750/3 = 250

Multiply each by 250

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2*250     250  3*250

500        250       750

4 0
3 years ago
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