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defon
3 years ago
8

PLEASE HELP WITH 35-37 DUE TOMORROW PLEASE ALSO EXPLAIN HOW YOU DID IT THANKS

Mathematics
1 answer:
Anarel [89]3 years ago
5 0
36.
A = lw
16 = 8(x-5)
16 = 8x - 40
56 = 8x
x = 7
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What is the value of the expression?
Blababa [14]

Answer:

- \frac{9}{10}

Step-by-step explanation:

Step 1: Add the numerator fractions.

2/5 + 3/10

Here we have to find LCD, the LCD of 5 and 10 is 10

                                         (2*2) + 3         4 + 3

Therefore,  2/5 + 3/10 = ---------------  = ------------------

                                          10                     10

= 7/10

Step 2: Now substitute 2/5 + 3/10 = 7/10 in the given fraction, we get


 7/10

=  ----------

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If we have fraction over fraction, we have to find the reciprocal of denominator fraction and multiply.

The reciprocal of -7/9 is -9/7

Step 3: Now multiply 13/10 and -9/7

= (7/10) x (-9/7)

= -9/10

=-9/10

The answer is  -\frac{9}{10}

8 0
3 years ago
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Help with 31 please
Goryan [66]

Answer:

C. 1/2 divided by 13

Step-by-step explanation:

You have to divide the 1/2 gallon between the 13 people...not the 13 people by the 1/2 gallon! Can you mark brainliest again??

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3 years ago
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Serga [27]

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Step-by-step explanation:

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2 years ago
A student correctly answered 35 of the 40 questions on a mathematics exam. What percent did she answer correctly?
GrogVix [38]

Answer:

87.5%

Step-by-step explanation:

To find a percentage of questions correct divide the number of correct answers by the total number of questions and then multiply that by 100.

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IgorLugansk [536]

Answer: <em>third from the top</em>

Step-by-step explanation:

<em>The correct answer is third from the top.</em>

<em>Arranging numbers in ascending order: </em>

<em>15 17 17 17 18 18 18 19 19 19 21 21 22 23 24</em>

<em>Let's count how many times each number occurs in this series of numbers.</em>

<em>row of numbers</em>

<em>15 </em>+

<em>16 not</em>

<em>17 </em>+ + +

<em>18 </em>+ + +

<em>19 </em>+ + +

<em>20 not</em>

<em>21 </em>+ +

<em>22 </em>+

<em>23 </em>+

<em>24 </em>+

<em>25 not</em>

6 0
3 years ago
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