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2 years ago

Can someone help me with this

Mathematics

1 answer:

n200080 [17]2 years ago

8 0

Answer:

Step-by-step explanation:

for dot plot A, the mean is 90 to the medium becuase it has the most dots out of them all.

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Find the surface area of the prism. Length: 5 width: 8 height: 12 in

frez [133]

Answer:

The only answer I have for this could be 392in²

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3 years ago

What is the slope of the line?

natima [27]

Answer:

(2,1)

Step-by-step explanation:

Because it rises by 2 and runs by 1

5 0

3 years ago

Which inequality best represents that ice cream at −5°C is cooler than ice cream at 4°C?

konstantin123 [22]

(<) this means less than
(>) this means greater than
So since the question doesnt say anything about -4°C we can automatically cross out A and B
They are both negative! but when you have a negative. Its going to be less than a positive
So this means 4°C is greater than -5°C
or in other words
D.) 4°C > -5°C
hope this helps!
and dont forget 2
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3 0

3 years ago

Read 2 more answers

During the evaporation

Leto [7]

Answer:

- 0.092g

- 0.979g

- 0.983g

Explanation: 0.83 > 0.979 > 0.092

5 0

2 years ago

Read 2 more answers

One watering system needs about three times as long to complete a job as another warning system when both systems operate at the

algol13

Answer:

One watering system requires 36 minutes to complete the job alone while another watering system requires 12 minutes to complete the job alone.

Step-by-step explanation:

Given:

Both the system can complete the job = 9 minutes

We need find the time required by each system to do the job.

Solution:

Let the time required by another watering system to complete the job be 'x' mins.

Now given:

One watering system needs about three times as long to complete a job as another watering system.

Time required by one watering system = $3x$

Rate to complete the job by another watering system = $\frac{1}{x}\ job/min$

Rate to complete the job by One watering system = $\frac{1}{3x}\ job/min$

Rate at which both can complete the job = $\frac{1}{9}\ job/min$

So we can say that;

Rate at which both can complete the job is equal to sum of Rate to complete the job by another watering system and Rate to complete the job by One watering system.

framing in equation form we get;

$\frac{1}{x}+\frac{1}{3x}=\frac19$

Now taking LCM to make the denominator common we get;

$\frac{1\times3}{x\times 3}+\frac{1\times1}{3x\times1}=\frac19\\\\\frac{3}{3x}+\frac{1}{3x}=\frac19\\\\\frac{3+1}{3x}=\frac{1}{9}\\\\\frac{4}{3x}=\frac{1}{9}$

By Cross multiplication we get;

$4\times9 =3x\\\\3x =36$

Dividing both side by 3 we get;

$\frac{3x}{3}=\frac{36}{3}\\\\x=12\ min$

Time required by One watering system = $3x =3\times 12 =36\ min$

Hence One watering system requires 36 minutes to complete the job alone while another watering system requires 12 minutes to complete the job alone.

6 0

3 years ago