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4 years ago

What is the volume of the cube when one side is 2 1/2 in

Mathematics

1 answer:

oksian1 [2.3K]4 years ago

8 0

Answer:

15 5/8 in³ (=15.625 in³)

Step-by-step explanation:

recall

volume of cube = length ³

given length = 2 1/2 = 5/2 inches

volume of cube,

= (5/2) ³

= 5³ / 2³

= 125 / 8

= 15 5/8 in³

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For question 6 pls help show work step by step

Alexxx [7]

The steps are labeled, and the chart on the side is to help you know which numbers are x, and which ones are y.

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4 years ago

Your school is sponsoring a pancake dinner to raise money for a field trip. You estimate that 150 adults and 280 children will a

soldi70 [24.7K]

Answer:

150x + 280y = 1310

Step-by-step explanation:

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3 years ago

The swimming pool is open when the high temperature is higher than 20∘C. Lainey tried to swim on Monday and Thursday (which was

Sergeeva-Olga [200]

Answer:

$30-3d\leq 20$

Step by step explanation:

Let d represent the rate of temperature decrease in degrees Celsius per day from Monday to Thursday.

As temperature decreased at a constant rate in the next 3 days, so the rate of temperature will decrease 3d degree Celsius in 3 days.

We are told that the pool was open on Monday. The high temperature was $30^oC$ on Monday. So the decrease in temperature from Monday to Thursday will be $30-3d$ .

We have been given that the swimming pool is open when the high temperature is higher than $20^oC$ .

As the pool was closed on Thursday. This means that temperature on Thursday was less than or equal to 20 degree Celsius. We can represent this information in an inequality as:

$30-3d\leq 20$

Therefore, the inequality $30-3d\leq 20$ can be used to determine the rate of temperature decrease in degrees Celsius per day, d, from Monday to Thursday.

7 0

3 years ago

Read 2 more answers

Determine whether 5, 238 is divisible by 2, 3, 4, 5, 6, 9, or 10.

Gelneren [198K]

Answer:

2, 3, 6

Step-by-step explanation:

Simply try each value using long division.

Since 5,238 ends in an even number, that automatically means it is divisible by 2.

5238/2=2619

Now for 3:

5238/3=1746 no remainder or decimal, so 3 also works

You can either do long division again with 4, or you can see if 5238 divided by 2 (5238/2) is also divisible by 2. Since 2619 doesn't end in an even number, 4 is a no go.

Long division 5238/4=1309.5 decimal here, so 4 isn't an answer

This is also very easy, simply check if the number ends in 0 or 5. Since 5,238 does not, 5 doesn't work either.

You can do the same thing as with 4, except this time trying to find if 5238 divided by 3 (5238/3) is divisible by 2. Since 1746 ends in an even number, 6 also works.

Long division: 5238/6=873

You can do the same thing as with 6, except this time trying to find if 5238 divided by 3 (5238/3) is divisible by 3.

1746/3=548 with a remainder of 2, which means 9 doesn't work

Long division: 5238/9=548.66 repeating

10:

Finally, 10 is another easy one. Simply check if the number ends in 0. 5,238 does not, so 10 doesn't work.

5 0

2 years ago

Claires is paid $90 for five hours of work at this rate how many seconds does it take for her to earn $.25

maria [59]

First find her rate per hour by dividing $90 by 5 hours:

90 / 5 = 18

She makes $18 in one hour.

1 hour = 3600 seconds.

Divide her hourly rate by 3600 to find how much she makes per second:

18 / 3600 = $0.005 per second.

Now divide $0.25 by 0.005 to find the number of seconds needed:

0.25 / 0.005 = 50

It takes 50 seconds.

3 0

3 years ago

Read 2 more answers