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Murljashka [212]

3 years ago

5

When the scientist put in 50 ml of solution, the cell count was 205. When 40 ml of solution was used, the cell count was 200. Wh

ich equation models this data

1 answer:

notka56 [123]3 years ago

3 0

Answer:

every 10 mL of solution equals 5 cells

Step-by-step explanation:

I'm not sure if this equation is right but I think it's either 200÷40, 205÷50, or 205÷40 I hope this is kinda helpful.

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Two angles are complimentary. One angle measures 69 degrees. The other measures ( 5n + 1). What is the value of n?

iren [92.7K]

Answer:

Step-by-step explanation:

complimentary angles, when added = 90 degrees

69 + 5n + 1 = 90

5n + 70 = 90

5n = 90 - 70

5n = 20

n = 20/5

n = 4 <====

6 0

3 years ago

Pls help <br><br> Thank you ❤️

nikdorinn [45]

Answer:

the difference is 78

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Step-by-step explanation:

Hope this helps

4 0

3 years ago

Between with pair of numbers is the exact product of 379 and 8

VikaD [51]

Answer:

Step-by-step explanation:

379 is a prime number. Only 2 numbers will divide into it. 1 and 379

So you could do this

379 * 8 = 3032

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(379 * 4 ) * 2 = 1516 * 2 = 3032

7 0

3 years ago

Zoe wrote 3/5 of her essay in 30 minutes. Assuming she wrote the paper at a constant rate the entire time, which expression can

LUCKY_DIMON [66]

Answer: The answer is (B)

Step-by-step explanation:

It just took the unit test

3 0

3 years ago

Solve AABC. Round your answers to the nearest hundredth, if necessary

Aloiza [94]

Answer:

$C=25^{\circ},\\a\approx 10.72,\\b\approx 11.83$

Step-by-step explanation:

The sum of the interior angles of a triangle is 180 degrees. Thus, angle C must be $180-90-65=25^{\circ}$ .

In any triangle, the Law of Sines is given by $\frac{\sin A}{a}=\frac{\sin B}{b}=\frac{\sin C}{c}$ .

Therefore, we have:

$\frac{\sin 90^{\circ}}{b}=\frac{\sin 25^{\circ}}{5},\\\\b=\frac{5\sin90^{\circ}}{\sin 25^{\circ}}=11.8310079158\approx \boxed{11.83}$

$\frac{a}{\sin 65^{\circ}}=\frac{5}{\sin25^{\circ}},\\a=\frac{5\sin 65^{\circ}}{\sin25^{\circ}}=10.7225346025\approx \boxed{10.72}$

8 0

3 years ago