All categories

4 years ago

10m^3 of air weigh 13 kg.

Mathematics

1 answer:

Lemur [1.5K]4 years ago

3 0

49.686‬ kg

Step-by-step explanation:

Since the density of the air remains constant in the question

We can represent this equation as a ratio;

10 m³ = 13 kg

(4.2 * 3.5 * 2.6) m³ = ? (x) kg

4.2 * 3.5 * 2.6 = 38.22

We cross multiply

38.22 * 13 = 10 * x

X = 496.86‬ /10

X = 49.686‬

Learn More:

brainly.com/question/3303591

brainly.com/question/254220

brainly.com/question/10685286

#LearnWithBrainly

You might be interested in

Please help me with the algebra question

Alex17521 [72]

Y= -2x - 14
where y = mx + b
where m is the slope (-2)
and b is the y-value of the y-intercept (-14)

4 0

3 years ago

A recipe of salad dressing calls for ¼ cup vinegar to ⅔ cup oil. How many cups of oil are needed for each cup of vinegar?

Akimi4 [234]

Answer:

$2\frac{2}{3} \ cups$ of oil are needed for each cup of vinegar.

Step-by-step explanation:

Given:

A recipe of salad dressing calls for ¼ cup vinegar to ⅔ cup oil.

Now, to find the cups of oil are needed for each cup of vinegar.

So, we solve by using unitary method:

If $\frac{1}{4}$ cup of vinegar is needed for oil of $\frac{2}{3}$ cup.

So, 1 cup of vinegar is needed for oil of = $\frac{2}{3} \div\frac{1}{4}$

= $\frac{2}{3}\times 4$

(the fractions turns reciprocals as the division changes into multiplication)

= $\frac{8}{3}$

= $2\frac{2}{3}$ cups.

Therefore, $2\frac{2}{3} \ cups$ of oil are needed for each cup of vinegar.

7 0

3 years ago

A triangle has two sides of 7 and 12 what value could the length of the third side be

mezya [45]

It would be D:7
It needs to have one side bigger than

7 0

3 years ago

Assume that abc = pqr. Which of the following congruence statements are correct? Check all that apply

allsm [11]

Answer:

A and E are correct congruence statements.

8 0

3 years ago

Ms. Peters drove from her home to the park

worty [1.4K]

It takes 15 minutes for Ms. Peter to drive from park to her home

Given :

from her home to the park at an average speed of 30 miles per hour and

returned home along the same route at an average speed of 40 miles per hour

it takes 20 minutes to travel

Convert 20 minutes in to hour (divide by 60)

20 minutes = 1/3 hour

We know that distance = speed x time

From home to park, distance = $speed \cdot time =30 \cdot \frac{1}{3} =10 miles$

So , distance between home and park is 10 miles

Now we calculate the time taken to return from park to home

$time taken =\frac{distance}{speed} =\frac{10}{40}=\frac{1}{4}\\$

Time taken is 1/4 hours. Convert it into minutes by multiplying by 60

$\frac{1}{4} \cdot 60=15$

So it takes 15 minutes for Ms. Peter to drive from park to her home

Learn more : brainly.com/question/18839247

5 0

3 years ago