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Anettt [7]
3 years ago
10

Equivalent to 25+3(a−5)+7a.

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
7 0

Answer:

25+3(a−5)+7a.

25+3a-15+7a

7a+3a+25-15

10a+10

10(a+1)

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Compare 8/11 to 3/5<br><br> PLEASE HELP !!!
ad-work [718]

Rewrite both fractions with a common denominator:

8/11 x 5 = 40/55

3/5 x 11 = 33/55

40/55 is greater than 33/55 so 8/11 is greater than 3/5

5 0
3 years ago
The Environmental Protection Agency records data on the fuel economy of many different makes of cars. Data on the mileage of 20
artcher [175]

Answer:

A) 8.5 miles per gallon

Step-by-step explanation:

Given

x = \{12\ 13\ 15\ 16\ 16\ 17\ 18\ 18\ 19\ 19\ 20\ 20\ 22\ 23\ 24\ 26\ 26\ 27\ 27\ 29\}

n = 20

Required

The IQR

This is calculated as:

IQR = Q_3 - Q_1

Calculate Q_1

Q_1 = \frac{1}{4}(n + 1)th

Q_1 = \frac{1}{4}(20 + 1)th

Q_1 = \frac{1}{4}(21)th

Remove bracket

Q_1 = 5.25th

This means that:

Q_1 is the mean of 5th and 6th item

From the given data:

5th \to 16

6th \to 17

So, we have:

Q_1 = \frac{1}{2}(16 + 17)

Q_1 = \frac{1}{2}(33)

Q_1 = 16.5

Q_1 = 16.25

Calculate Q_3

Q_3 = \frac{3}{4}(n + 1)th

Q_3 = \frac{3}{4}(20 + 1)th

Q_3 = \frac{3}{4}(21)th

Remove bracket

Q_3 = 15.75th

This means that:

Q_3 is the mean of 15th and 16th item

From the data:

15th \to 24

16th \to 26

So:

Q_3 = \frac{1}{2}(24 + 26)

Q_3 = \frac{1}{2}(50)

Q_3 = 25

Recall that:

IQR = Q_3 - Q_1

IQR = 25 -16.5

IQR = 8.5

7 0
3 years ago
Help with a few questions pleaseeeeee
mel-nik [20]
29.99 * 3 =89.97 89.97 with 30% off = 62.98 and 5% of 62.98 =3.15 so 62.98 + 3.15 = 66.13$ 


180.00 + 14.95 + 8.95 = 203.09 - 15% = 173.44 + 4% = 180.38


5.65 + 5% of 5.65 = 5.93 

i think this is all right you might want to check my work!
3 0
4 years ago
Original price: 70$;markup 20%
Phoenix [80]

Answer:

your revenue is$84

profit=14

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
A. Find the complement of the angle shown
KatRina [158]
<span>A. Find the complement of the angle shown 

90 - 52 = 38

</span><span>B. Find the supplement of the angle shown. 

180 - 52 = 128

hope that helps</span>
7 0
3 years ago
Read 2 more answers
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