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2 years ago

Help pls some one pls

Mathematics

1 answer:

Gennadij [26K]2 years ago

4 0

ANSWER: 38.25 pounds

EXPLANATION:

One gallon weighs 8.5 pounds. In 4 1/2 there are 4 gallons so we’re need to figure out how much 4 gallons weigh. To do this multiply the weight of one gallon by the number of gallons.

4 x 8.5 = 34

So we know that 4 gallons is 34 pounds

Now we still have half a pound we need to find the weight of. To find the weight of half a pound divide the weight of one gallon by 2.

8.5 divided by 2 = 4.25

Now we add the 4 pounds and the 1/2 to get the weight of them.

34 + 4.25 = 38.25

So the answer is 38.25 pounds

If you need more of an explanation let me know I can try to explain better :)

GOOD LUCK WITH THE REST IF YOUR WORK! :)

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Convert the following repeating decimal to a fraction in simplest form .31 with the 1 repeating

bekas [8.4K]

Answer:

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Step-by-step explanation:

So we have the fraction:

$0.3\bar1=0.31111...$

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Let's let this number equal to n. Thus:

$0.31111...=n$

Since there is only 1 digit repeating, let's multiply everything by 10. So:

$3.1111...=10n$

Now, subtract n from both sides:

$3.1111-n=10n-n$

On the left, substitute the number for n. On the right, combine like terms:

$3.1111...-0.31111...=9n$

All of the 1s will cancel. So:

$3.1-0.3=9n$

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$2.8=9n$

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$n=2.8/9$

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$n=28/90$

Reduce:

$n=14/45$

And we're done!

Use a calculator to check:

$14/45\stackrel{\checkmark}{=}0.31111...$

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3 years ago

Help pls some one pls​

Help pls some one pls