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Vitek1552 [10]
2 years ago
14

What is the answer to 2 2/10 - 4/10

Mathematics
2 answers:
telo118 [61]2 years ago
8 0

Answer:

1 4/5 (Proper Fraction)

1 8/10 (Proper Fraction, but Not simplified)

18/10 (Improper Fraction)

Step-by-step explanation:

change to improper fraction

22/10 - 4/10 = 18/10

Simplify

18/10 = 1 8/10

Simplify again

1 4/5

FinnZ [79.3K]2 years ago
5 0

Answer:

1  8/10                             2  2/10 - 4/10

      2 becomes 1 and 2/10 becomes 12/10           1  12/10 - 4/10 = 18/10

                                                                                       

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Please help me please help me please help me
MissTica

Answer:

B.50

Step-by-step explanation:

The two angles form a right angle ( indicated by the little square )

Right angles have a measure of 90 degrees

Hence, x + 10 + 30 = 90

( Note that we just created an equation that we can use to solve for x )

We now solve for x using the equation we created

x + 10 + 30 = 90

Combine like terms

x + 40 = 90

Subtract 40 from both sides

x = 50

3 0
3 years ago
A sample of 25 undergraduates reported the following dollar amounts of entertainment expenses last year:
Kaylis [27]

Answer:

A.

mean = 724.2

Median = 715

Mode = 768

B.

Range = 85

Standard deviation = 29.30

C.

Interval = [665.6, 782.8]

Step-by-step explanation:

Number of samples n = 25

Summation X= 769 + 691 + 699 +730+711+ 765+ 702 718 +719 +712+ 768 +688 +757+695 768 +735 +709 +758 +708+ 693 +736 700+ 687 +772 +715 = 18105

A.

1. Mean = 18105/25

= 724.2

2. Median is the middle value when arranged from the least value to the highest = 715

3. Mode is the number with the highest frequency = 768 (occured two times)

B.

1. Range = highest value - lowest value

Highest value = 772

Lowest value = 687

772-687 = 85

2. Standard deviation = √(X-barX)²/n-1

= √20604/25-1

=√858.5

= 29.30

Please check attachment for the full calculation of the standard deviation

C.

Interval

[Mean - 2(sd), mean + 2(sd)]

= [724.2-2x29.3, 724.2+2x29.3]

=[665.6, 782.8]

4 0
2 years ago
Circumference and Area questions look at the picture
Helga [31]

Note that the formula for the circumference of a circle is πd, while the formula for the area of a circle is πr².

π≈3.14

A. C=πd

Simply plug in the numbers into the formula.

Diameter=Radius*2

17*2=34

C=34(π)

B. (π)(5²)

Plug in the numbers into the formula. Remember that half of the diameter is the radius.

C.  (π)(4.5)

There are two possible formulas that could be used to calculate the circumference of a circle: πd and 2πr.

The expression above is simply multiplying the circle's radius times pi. Therefore, it is not a method that could be used to find the circumference of a circle.

D. (π)(6.5²)

Remember that the formula for calculating the area of a circle is πr².

Half of the diameter is 6.5 (13.5/2=6.5). 6.5 cm. is the radius. Now just plug the numbers into the formula.

(π)(6.5²)

Therefore, the last answer choice is the correct answer.

5 0
2 years ago
Which product is positive?<br> ( 13 ( 31 )<br> ( 31 )<br> (3) ( 13 (1)
Anastaziya [24]
The first one because it’s (13(31)
8 0
3 years ago
The product of - 6 and a number x, increased by 23 is – 163. What is<br>the number?​
vodka [1.7K]

Answer:

Hope this is correct

4 0
3 years ago
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