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sesenic [268]
2 years ago
14

Help asap show work i will make u brainlest.

Mathematics
1 answer:
o-na [289]2 years ago
4 0

Answer: (5) D       (6) D         (7) B        (8) B        (9) C

Step-by-step explanation:

5)  2 - 3n < 17      and     6n + 4 < 58

   <u>-2        </u>   <u>-2 </u>                <u>        -4 </u>  <u> -4   </u>

       -3n  <  15                 6n      <  54

    <u>÷ -3    </u>↓ <u>÷ -3 </u>             <u> ÷6     </u>    <u>  ÷6 </u>  

          n  >   -5     and       n      <   9

                    -5 <  n < 9

6) 6x + 5 > -49     and     7 - 4x ≥ -21

   <u>       -5 </u>  <u> -5    </u>             <u> -7       </u>    <u> -7 </u>

   6x       >  -54                   -4x ≥  -28

  <u>÷6       </u>    <u>÷6     </u>             <u> ÷ -4  </u>↓  <u>÷ -4 </u>

      x      >  -9       and           x ≤  7

                      -9 < x ≤ 7

                       

7)  -69 ≤ 6x - 9 ≤ -45

   <u>  +9 </u>   <u>      +9 </u>   <u> +9  </u>

     -60 ≤ 6x     ≤  -36

   <u> ÷6  </u>   <u>÷6     </u>     <u>÷6   </u>

    -10  ≤   x     ≤  -6

8)  -93 ≤ 9n - 3 < -84

    <u> +3 </u>    <u>     +3 </u>   <u>  +3 </u>

    -90 ≤ 9n      <  -81

   <u> ÷9  </u>   <u> ÷9     </u>    <u>÷9  </u>

    -10  ≤    n     <  -9  

9)  4k - 6 ≤ -6 + 6k       or     -3k - 5 ≥ -2k + 10

  <u> -6k      </u>   <u>       -6k </u>             <u> +2k     </u>   <u>+2k         </u>

    -2k - 6 ≤ -6                         -k - 5 ≥         10

   <u>        +6</u>   <u> +6       </u>              <u>       +5</u>      <u>      +5  </u>

    -2k       ≤  0                         -k      ≥         15    

  <u> ÷ -2     </u>  ↓ <u>÷ -2    </u>               <u>  ÷ -1  </u>  ↓  <u>      ÷ -1   </u>

        k     ≥    0            or            k   ≤      -15

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Find out the how long will the Yellow balloon be higher than the orange balloon.

To proof

Now  the diagram is given below

As given

A yellow hot-air balloon is 100 feet off the ground and rising at rate of 8 feet per second.

i.e height of the yellow baloon off the ground  = 100 feet

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Relative\ velocity = \frac{Relative\ Distance}{Relative\ time}

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put in the formula

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What's 57.5 times 18.5?
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Note:  I had to guess that by "68,90," you actually meant "68/90."
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