3 years ago

A scientist counted 3,921 total eggs in

Mathematics

1 answer:

KatRina [158]3 years ago

5 0

The answer is 80 eggs:) if you divide 3,921 and 80 you get 49

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Leviafan [203]

Answer: I believe it is D..

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3 years ago

For what value of k are the roots of the quadratic equation kx (x-2)+6=0 equal?

ser-zykov [4K]

Answer:

$\boxed{\sf k=6}$

Step-by-step explanation:

$\sf kx (x-2)+6=0$

Expand brackets.

$\sf kx^2 -2kx+6=0$

This is in quadratic form.

$\sf ax^2 +bx+c=0$

Since this is for equal roots:

$\sf b^2 -4ac=0$

$\sf a=k\\b=-2k\\c=6$

$\sf (-2k)^2 -4(k)(6)=0$

$\sf 4k^2-24k=0$

$\sf 4k(k-6)=0$

$\sf 4k=0\\k=0$

$\sf k-6=0\\k=6$

Plug k as 0 to check.

$\sf \sf 0x^2 -2(0)x+6=0\\6=0$

False.

So that means k must equal 6.

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3 years ago

Solve x+8y/4=9y for x

nikklg [1K]

Answer:

x = 7y

Step-by-step explanation:

x+8y/4=9y

Multiply each side by 4 to get rid of the fractions

4(x+8y/4)=9y*4

Distribute

4x +8y = 36y

Subtract 8y from each side

4x +8y-8y = 36y-8y

4x = 28y

Divide each side by 4

4x/4 = 28y/4

x = 7y

6 0

3 years ago

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A regular work week is 40 hours. Overtime pay is time and one-half. Isabel drives a truck for $8.75 an hour. If she worked 48 ho

Harlamova29_29 [7]

For 40 hours it would be $350

And since it is only half pay for overtime then she would only make $35 in eight hours

So altogether she would make $385 this week

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3 years ago

david is filling five (3)/(4 )bottles with a sports drink. His measuring cup only holds (1)/(4)quart. How many times will david

shepuryov [24]

4/4 is the answer here u go

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3 years ago