3 years ago

A dog trainer compared mean numbers of lessons for two groups of dogs to learn a new trick.

Mathematics

1 answer:

d1i1m1o1n [39]3 years ago

4 0

Answer:

Step-by-step explanation:

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the germination rate for zinnia seeds is 78%. this means that 78 out of every 100 seeds will sprout and grow. if james wants 60

Harlamova29_29 [7]

Answer: 77 seeds

Step-by-step explanation:

Given: The germination rate for zinnia seeds =78%

Let x be the total number of seeds he planted, then

The seeds germinated= 78% of x

⇒The seeds germinated= 0.78x

If James wants 60 zinnia plants for his yard, then it will give the equation

$0.78x=60\\\Rightarrow\ x=\frac{60}{0.78}\\\Rightarrow\frac{6000}{78}\\\Rightarrow\ x=76.92307\aprrox77$

Hence, he should plant 77 seeds .

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3 years ago

If the circumference of a circle is 15 pie inches, then what is its diameter

Butoxors [25]

Answer:

diameter is half the value of circumference 15/2 =7.5 diameter

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3 years ago

I need help with this if you’re right I will mark you as brainlest

liraira [26]

Answer:

try 1.8 or .18

Step-by-step explanation:

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3 years ago

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The Richter scale is used for measuring the magnitude of an earthquake. The Richter magnitude is given R = 0.67log(0.37E) + 1.46

natka813 [3]

Answer:

7.9982

Step-by-step explanation:

-The function for an earthquake's magnitude is given by R = 0.67log(0.37E) + 1.46

-E is energy in kwh.

#For 15,500,000,000 kilowatt hours the magnitude would be:

$R = 0.67\ log(0.37E) + 1.46,\ \ E=15,500,000,000 \ kwh\\\\\therefore R=0.67 \ log(0.37\times 15,500,000,000)+1.46\\\\\\=7.9982$

Hence, the earthquakes magnitude is 7.9982

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3 years ago

Can someone please help how do u do this

sasho [114]

Hey, I suggest checking out tiger algebra, this is the answer I got from the site :

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3 years ago