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Serhud [2]
3 years ago
14

What is the value of the expression below when x = 7?5x - 7​

Mathematics
2 answers:
gulaghasi [49]3 years ago
7 0

Answer:

28 is the answer

Step-by-step explanation:

5(7)= 35

35-7=28

Zina [86]3 years ago
4 0

Answer:

28

Step-by-step explanation:

5x -7\\x =7

Substitute 7 for x in the given equation

5x -7\\\\= 5(7) -7\\\\= 35-7\\\\= 28

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What is bigger 100 fl oz or 16 pt
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16 pints = 256 fluid ounces. So 16 pints is greater than 100 fl oz.
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4 years ago
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If you purchesd a $49.00 gift and you use a 20% off coupon how much do you spend
Nutka1998 [239]

Answer:

$39.20

Step-by-step explanation:

$49 * (1-.2) = $39.20

4 0
3 years ago
Observe the Function Below. f(x) = -8x2 + 7x3 + 2x – 5 Is the function a polynomial?​
marshall27 [118]

Answer:

Step-by-step explanation:

f(x) = -8x² + 7x³ + 2x - 5

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4 0
3 years ago
Estimate show how you estimated 412 divided by 97
nataly862011 [7]
<span>the division of 412 divided by 97 can be estimated as:

412 can be estimated  as: 400
97 can be estimated to 100

so, now on dividing 400/100 we get, the answer as 4.

To verify the estimation: when 412 is divided by 97, the answer is 4.24 which can be nearly written as 4 only.

Thus, our estimation was correct.</span>
8 0
4 years ago
If a line is perpendicular to y=-2/3x+2, will it be perpendicular to 2x+3y=12?
vova2212 [387]

Answer:

<em>3x + 2y = -2 </em>

Step-by-step explanation:

<em>Given Equation is</em> <em>− 2 x  +  3 y  =  12</em>

3 y  = 2 x  +  12

y =  ( 2 /3 )  y  +  12

<em />

<em>Slope of this line is  </em><em>m  =  2/ 3 </em>

<em> Slope of Line A </em><em> m a  =  2 </em>

<em> Slope of Line B  </em><em>m b  =  2/ 3 </em>

<em> Slope of Line C  </em><em>m c  =  − ( 2 /3 ) </em>

<em> Slope of Line D</em>  <em>m d  =  −  ( 3 /2 ) </em>

since  m d  =  − 1 /m  ,  <em>D</em>  is perpendicular to the given line

7 0
3 years ago
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