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Lady_Fox [76]
3 years ago
9

Angle Measurements

Mathematics
1 answer:
Naddik [55]3 years ago
4 0

Answer:

X = 11

Complementary angles

Step-by-step explanation:

Complementary angles are when two angles add up to 90 degrees.

3x + 10 + 47 = 90

3x + 10 = 43

3x = 33

x = 11

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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
3 years ago
What is the answer to 168÷54
mylen [45]
3 1/9 or 3.11 because you get a remainder of 1.

6 0
3 years ago
Read 2 more answers
The graph shows the cost to rent a surfboard for different amounts of time. Cost to Rent a Surfboard Cast (dollars) 1 7 23 4 5 6
Romashka-Z-Leto [24]

Answer:

d

Step-by-step explanation:

Because it is asking for the amount of times and the dots land in 1,2,3,4,5,6 hope this helps :D

3 0
3 years ago
What is 12 2/3 X 2 1/2
vampirchik [111]

Answer:

31.67

Step-by-step explanation:

12 2/3 X 2 1/2

we begin by converting this into improper fractions,

= 38/3 * 5/2

= 95/3

= 31.67

8 0
3 years ago
I need her Divideing .31 9
Aleks [24]
Answer:

If we’re dividing .31 by 9

The solution is on the photo below

Hope this helped. Have a great day!

3 0
3 years ago
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