2 years ago

Can you guys hurry pls I only have 20 more minutes

Mathematics

1 answer:

frutty [35]2 years ago

7 0

I think it’s 3? i’m sorry if that’s wrong

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If a gene has one completely dominant allele and two recessive alleles, how

yanalaym [24]

Answer:

B)2

Step-by-step explanation:

I think it is 2 but Im not percent. Hope this helps

7 0

2 years ago

Peggy had three times as many quarters as nickels. She had $1.60 in all. How many nickels and how many quarters did she have?. .

Andru [333]

Let

n-------> the number of nickels

q------> the number of quarters

we know that

$1\ quarter=\$0.25\\1\ nickel=\$0.05$

$0.05n+0.25q=1.60$ ----> equation A

$q=3n$ ----> equation B

substitute equation B in equation A

$0.05n+0.25[3n]=1.60$

$0.05n+0.75n=1.60$

$0.80n=1.60$

$n=2$

Find the value of q

$q=3*2=6$

therefore

<u>The answer part a) is</u>

the number of nickels are $2$ and the number of quarters are $6$

<u>the answer Part b) is</u>

The expressions that represents the number of quarters is

$q=3n$

5 0

2 years ago

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Select ALL the correct answers.

jolli1 [7]

Answer:

(4x+5)(-3x-1) = -12x²-19x-5

Option A:

(-16x² + 10x - 3) + (4x² - 29x - 2) = -12x²-19x-5

Option A is correct.

Option B:

3(x - 5) - 2(6x² + 9x + 5) = -12x²-15x-25

Option B is wrong.

Option C:

2(x - 1) - 3(4x² + 7x + 1) = -12x²-19x-5

Option C is correct.

Option D:

(2x² - 11x - 9) - (14x² + 8x - 4) = -12x²-19x-5

Option D is correct.

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2 years ago

Which situation could be represented by -5 x 3

Vladimir79 [104]

Answer:

-15

Step-by-step explanation:

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2 years ago

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3/4h*19mi/1/4h. Can you please help me I need an answer by tonight

aniked [119]

Answer:

$57mi$

Step-by-step explanation:

we have

$\frac{3}{4}h*19mi/\frac{1}{4}h$

we know that

$\frac{3}{4}h*19mi/\frac{1}{4}h=\frac{(3/4)h}{(1/4)h}*19mi\\ \\=3*19mi\\ \\=57mi$

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3 years ago