A scientist is experimenting with bacteria in his laboratory He starts out with 3 bacteria

devlian [24]

Answer: $2.40 and he saved $9.60 follows: $12 x . 80 = $9.60 savings

3 0

3 years ago

Lisa [10]

Answer:

B. 200 doses

Step-by-step explanation:

Given,

1 dose is required for 100 mg,

Since, 1 mg = 0.001 g,

⇒ 100 mg = 0.1 g

⇒ 1 dost is required for 0.1 g,

Thus, the ratio of doses and quantity ( in gram ) is $\frac{1}{0.1}=10$

Let x be the doses required for 20 grams,

So, the ratio of doses and quantity is $\frac{x}{20}$

$\implies \frac{x}{20}=10$

$\implies x=200$

Hence, 200 doses can be obtained from 20 grams of the drug.

Option 'B' is correct.

8 0

3 years ago

qwelly [4]

Answer: $ 82

Step-by-step explanation:

92 - 10 = 82

7 0

3 years ago

const2013 [10]

Answer: y = 4 and x = 1

Step-by-step explanation:

when y is 2, x is 0.5

when y is 4, x is 1

.(+ 2) .(+ 0.5)

the rule is that y is 4 times larger than x

5 0

3 years ago

Aleksandr-060686 [28]

You have to explain how you knew to use 55 and 120, not another option.

Hope it helped! :)

4 0

3 years ago