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1 year ago

Please just put the answer for this question On D

Mathematics

1 answer:

damaskus [11]1 year ago

4 0

Answer

The liters of air takes in during 150 seconds is 25 liters

Step-by-step explanation:

A man takes in 5 liters of air in 30 seconds

Firstly, we need to find the rate

Given:

Volume = 5 liters

time = 30 seconds

Rate =?

Volume = rate x time

5 = rate * 30

rate = 5/30 liters / second

Find the volume of air takes in during 150 seconds at the same rate

Volume = rate * time

Volume = 5/30 * 150

Volume = 5 * 150 / 30

Volume = 25 liters

Hence, the liters of air takes in during 150 seconds is 25 liters

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The length of a rectangle is measured as 370mm correct to 2 significant figures.

olga nikolaevna [1]

Answer:

UB: 375

Step-by-step explanation:

370mm to 2 sig figs..

UB: 375

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4 years ago

Pls can I have the workings too

KengaRu [80]

Answer:

$\frac{(3-2a)}{a^2}$

Step-by-step explanation:

Given expression is,

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$\frac{3}{a^2}-\frac{2a}{a^2}$

Now combine the fraction as a single fraction,

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3 years ago

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ikadub [295]

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Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the value of f(7)

Lelu [443]

Answer:

7f

Step-by-step explanation:

You move 7 to the left of f.

This makes the exact value of f(7), 7f.

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4 years ago

Can anyone help me on what’s -4 - (-3) plsss it’s for my math test

ololo11 [35]

Answer:

-1

Step-by-step explanation:

It is negative 1 because the signs for the -3 are the same so you keep the -4, change the - to a +, then flip the negative 3.

Hope this helps!

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3 years ago