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2 years ago

If 1/2x = a= 2/3y and x + y= na, what is the value of n?

Mathematics

1 answer:

Fynjy0 [20]2 years ago

4 0

Answer:

Step-by-step explanation:

$\frac{1}{2} x=a=\frac{2}{3} y\\\frac{1}{2}x=a\\x=2a \\\frac{2}{3} y=a\\y=\frac{3}{2} a\\x+y=2a+\frac{3}{2} a=\frac{4a+3a}{2} =\frac{7}{2} a=na\\n=\frac{7}{2}$

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In Drosophila, the genes for withered wings (whd), smooth abdomen (sm) and speck body (sp) are located on chromosome 2 and are s

boyakko [2]

Answer:

The number of expected double crossover progeny is 47.275

To the nearest whole number 47

Step-by-step explanation:

Consider the provided information.

The distance between withered wings (whd) and smooth abdomen (sm) is 30.5,

That means the probability of crossover between them is 0.305.

The distance between smooth abdomen (sm) and speck body (sp) is 15.5,

That means the probability of crossover between them is 0.155

The resulting phenotypically wild-type females were mated with males that had the mutant phenotype for all three traits,

That means the expected frequency of double crossover progeny will be:

0.305×0.155 = 0.047275

It is given that they producing 1000 offspring, therefore,

0.047275×1000 = 47.275

The number of expected double crossover progeny is 47.275

To the nearest whole number 47

3 0

3 years ago

Write the log equation as an exponential equation

Serjik [45]

Answer:

$(z+5)^{(3x+4)} = 9$

Step-by-step explanation:

Tip: When $log_{a} b = c$ , $a^{c} =b$ is also true.

$log_{z+5} (9) = 3x+4$ | <em>Original equation</em>

$(z+5)^{(3x+4)} = 9$ | <em>Use tip</em>

7 0

3 years ago

Read 2 more answers

If Morgan and Kira have a number of jelly beans in a ratio of 5 : 3. Kira and Mann have a

castortr0y [4]

Answer:

Step-by-step explanation:

Kira has 3/8 of the total of Jelly Beans available. Morgan has the other 5/8

So if there are 56 Jelly beans in total 3/8 * 56 = 21 which would be Kira's share.

Morgan would have 5/8 * 58 = 35 Jelly beans (Not that this is really relevant).

Now Kira and Mann have a ratio of 6:1 which means that she has 6/7 of the total between those two. He therefore must have 1/7 of the total.

Her total is 21.

1/7 of 21 = 3

Therefore Mann would have 3 jelly beans.

3/8 * 1/7 is the total the number of Jelly Beans that he would have if the total was N

N(3/8 * 1/7) = N (3/56)

3 0

3 years ago

18.50x2.6 what is the answer helppppp!!!!!!!!!!!!!!

ser-zykov [4K]

Answer:

48.1

Explanation:

Remove Decimals & Multiply

1850 · 26

= 4810

18.5 Has One Decimal Places

2.6 Has One Decimal Place

Move The Decimal Over Two Places

4810 $\rightarrow$ 48.1

6 0

3 years ago

Read 2 more answers

Find the area of the rectangle below multiplying its length and width (5x-4)(2x-5)

Serhud [2]

Use the FOIL method to multiply these terms. Multiply the first, outside, inside, and last terms:

(5x - 4)(2x - 5)

(5x)(2x) + (5x)(-5) + (-4)(2x) + (-4)(-5)

10x² - 25x - 8x + 20

10x² - 33x + 20

The area of the rectangle should be 10x² - 33x + 20.

7 0

3 years ago