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3 years ago

When measuring weight 6 small dogs are approximately equal to 9 large cats.

Mathematics

1 answer:

Zolol [24]3 years ago

7 0

Answer:

See below

Step-by-step explanation:

Equation 1:

Step 1:

6 : 9 = x : 54 Ratio

Step 2:

9x = 324 Multiply

Step 3:

36 small dogs Divide

Equation 2:

Step 1:

6 : 9 = x : 12 Ratio

Step 2:

9x = 72 Multiply

Step 3:

8 small dogs Divide

First Answer:

36 small dogs

Second Answer:

8 small dogs

Hope This Helps :)

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What is the additive inverse of (- 2) ?

Evgesh-ka [11]

Answer:

2 because it holds the same value as -2 and its the additive inverse

6 0

2 years ago

HELP 100 POINTS The population of a city is modeled with the function P=250,000e^0.013t, where t is the number of years since 2

erma4kov [3.2K]

Pretty difficult problem, but that’s why I’m here.
First we need to identify what we’re looking for, which is t. So now plug 450k into equation and solve for t.
450000 = 250000e^0.013t
Now to solve this, we need to remember this rule: if you take natural log of e you can remove x from exponent. And natural log of e is 1.
Basically ln(e^x) = xln(e) = 1*x
So knowing this first we need to isolate e
450000/250000 = e^0.013t
1.8 = e^0.013t
Now take natural log of both
Ln(1.8) = ln(e^0.013t)
Ln(1.8) = 0.013t*ln(e)
Ln(1.8) = 0.013t * 1
Now solve for t
Ln(1.8)/0.013 = t
T= 45.21435 years
Now just to check our work plug that into original equation which we get:
449999.94 which is basically 500k (just with an error caused by lack of decimals)
So our final solution will be in the 45th year after about 2 and a half months it will reach 450k people.

6 0

2 years ago

Complete the statement below.

slava [35]

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▹ Answer

▹ Step-by-Step Explanation

You can use any expression that shows the commutative property of multiplication. For example, 3 × 4 = 4 × 3

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

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4 0

2 years ago

Find the value of x

lbvjy [14]

Answer:

x = 14.5

Step-by-step explanation:

Exterior angle thm

<C = <D

7x - 2 = 9x - 31

7x - 9x = -31 + 2

-2x = -29

x = 14.5

5 0

2 years ago

In a statistics class, the standard deviation of the heights of all students was 3.8 inches. The standard deviation of the heig

goblinko [34]

Answer:

The reason why standard deviation of the entire class is greater than standard deviation of males and females considered separately, is that mean values for males and females are different from each other.

Step-by-step explanation:

The concept of mean is well represented by the following formula

mean = $\frac{(x1 + x2 + x3 + ..... + xn)}{N}$ , where x1, x2, xn are the observations and N is the number of observations (population).

Standard deviation represents the distance between each observation and the mean of the population (all observations). The formula for this parameter is:

Standard deviation =√[((x1 - x)² + (x2-x)² + ....+ (xn-x)²)/N-1], where x1, x2,..., xn are the observations and x is the mean value.

In this case you have that each height registered is an observation and the number of observations represents the N value. As you can see if the mean for males is different from that of females their standard deviation will be different too. Usually males have heigths greater than that of females (1.77 vs 1.64, in USA for example), and heights inside each group will be more similar than between groups. Then, when you mix all observation there will be an increase in standard deviation, because you are mixing very different heigths

4 0

3 years ago