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4 years ago

5

If there are 10 South American butterflies and you're comparing 3:2 and 2 is European birds and 3 is South American birds how ma

ny European birds are there

1 answer:

zvonat [6]4 years ago

3 0

So 3:2
and there are 10 south american butterflies then it would be 10/3 =? and that number *2

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One number is 4 more than another number. Four times the smaller number is three less than three times the larger number. Find t

xxMikexx [17]

Let X = smaller
Number. Then, x+4 = larger number
4x = 3(X+4) -3
4X = 3x + 12 - 3
X = 9

3 0

3 years ago

What is the value of n in the equation below?<br><br>A:-20<br>B:-9<br>C:9<br>D:20

Nikitich [7]

Answer is C:9
12^9/12^5 = 12^4

hope it helps

8 0

3 years ago

Read 2 more answers

Find the mean and the MAD. [Note: Type your answers as decimal numbers, rounded to the nearest tenth.] 135, 160, 145, 155, 170,

VashaNatasha [74]

Answer:

Mean = 151

MAD = 9.14

Step-by-step explanation:

Given the data:

135, 160, 145, 155, 170, 150, 142

Mean = Σx / n

Mean = 1057 / 7

Mean = 151

Mean absolute DEVIATION (MAD) : Σ(x - μ) / n

[(135-151) + (160-151) + (145-151) + (155-151) + (170-151) + (150-151) + (142-151)] / 7

Mean absolute deviation = 9.14

4 0

3 years ago

Find sec θ if <br> tan θ = 15/8<br> and θ terminates in QIII.

EastWind [94]

Tangent = opposite/adjacent
tangent = 15 / 8
If opp = 15 and adj = 8 then
hypotenuse^2 = 15^2 + 8^2
hypotenuse^2 = 225 + 64
hypotenuse^2 = 289
hypotenuse = 17

secant = hypotenuse / adjacent
secant = 17 / 8
secant = 2.125

5 0

3 years ago

Solve 71.2e = 1,637.6

otez555 [7]

Answer:

193.54166618

Step-by-step explanation:

7 0

3 years ago