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3 years ago

A certain drug is made from only two ingredients: compound A and compound B. There are

Mathematics

1 answer:

NISA [10]3 years ago

3 0

Answer:

425 milliliters of compound A are needed

Step-by-step explanation:

We were told that $5$ milliliters of compound A and $6$ milliliters of compound B is needed to make the drug.

This means that each drug contains 11 milliliters of both compounds.

$\frac{935}{11}=85$ milliliters is the volume of each drug.

Therefore the chemist needed $5\times 85=425$ millilirteres of compound A.

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The United States is about the only country that still uses the units feet, miles, and gallons. However, you might see some car

Black_prince [1.1K]

Answer: $4.5 \text{ miles per gallon}$

Step-by-step explanation:

Given : The fuel efficiency of car = 7.6 km per kilogram

We also given that

1 mile = 1.609 km

Then, $\text{1 km}=\dfrac{1}{0.609}\text{ mile}$

1 gallon = 3.785 liters

$\text{1 liter}=\dfrac{1}{3.785}\text{ gallon}$

1 liter of gasoline = 0.729 kg

Then, $\text{1 kg}=\dfrac{1}{0.729}\text{ liter}$

$\Rightarrow\ \text{1 kg}=\dfrac{1}{0.729}\times\dfrac{1}{3.785}\text{gallon}$

Now, the fuel efficiency of car will be :

$7.6\times\dfrac{1}{0.729}\times\dfrac{1}{3.785}\times\dfrac{1}{0.609}\\\\=4.52275317827\approx4.5 \text{ miles per gallon}$

Hence, the car’s fuel efficiency in miles per gallon= 4.5

3 0

2 years ago

Carlos is arranging books on shelves. He has 56 novels and 16 autobiographies. Each shelf will have the

labwork [276]

Answer:

Step-by-step explanation:

it would be 72 because your adding 56+16 and that equals 72 numbers he will use

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2 years ago

What are the different methods in finding the LCM

Nezavi [6.7K]

Answer:

4 methods are there

Step-by-step explanation:

Find the prime factorization of each number.
Write each number as a product of primes, matching primes vertically when possible.
Bring down the primes in each column.
Multiply the factors to get the LCM.

please mark me as brainlist

8 0

2 years ago

Olivia cashed a check

N76 [4]

Cool I guess hehehehehe

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2 years ago

Help 6th grade math i will give brainliest

andriy [413]

Answer:

1) 125

2) 1

3) 27

Step-by-step explanation:

1) 5*5*5=

125

2) whenever there is an exponent of 0, the number is 1

3) 3*3*3=

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2 years ago