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2 years ago

A cube has a surface area of 100 square inches

1 answer:

8 0

<span>1. 12
2. 225 sq. ft.
3. 6.25 sq. ft.
4. no
5. $3.00
6. 6

please make my answer best answer thank you
p.s. the very first question is 600 sq. in.</span>

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If the diameter of a circle with a circumference of 19.5 inches is reduced by three, what would be the circumference of the new

Elanso [62]

It is given that the circumference of the circle is 19.5 inches. Let the diameter is d inches .

And the formula of circumference is

$C= \pi d$

Substituting the value of C, we will get

$19.5= \pi d
\\
d = \frac{19.5}{ \pi}$

When the diameter increased by 3, then the circumference is

$C = \pi ( \frac{19.5}{ \pi} +3})=Approx 29 inches$

And the circumference , when diameter is increased by 3 is 29 inches .

3 0

3 years ago

Read 2 more answers

you earned $112.00 last time you babysat for 7 hours.The same family asks you to babysat for 8 hours this time.They will pay you

guapka [62]

You will earn $128.00 because when you divide $112.00 by 7 you get 16. Then you multply 16 by 8 and get $128.00

Hope I was helpful!

3 0

2 years ago

Geometry Question with a picture upload

qaws [65]

The answer is 110, which is the letter D.

3 0

3 years ago

Read 2 more answers

What fraction of 11 and 1/6 in decimal form

cupoosta [38]

11.16 repeat only the six is repeating

6 0

3 years ago

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

bekas [8.4K]

Answer:

14/45

Step-by-step explanation:

So we have the fraction:

$0.3\bar1=0.31111...$

We can do this algebraically. Follow to following steps:

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:

$3.1-0.3=9n$

Subtract:

$2.8=9n$

Divide both sides by 9:

$n=2.8/9$

Remove the decimal by multiplying both sides by 10:

$n=28/90$

Reduce:

$n=14/45$

And we're done!

Use a calculator to check:

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

7 0

2 years ago