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Oxana [17]
3 years ago
5

Please do these three and show work

Mathematics
2 answers:
AVprozaik [17]3 years ago
5 0

Answer:

2)16.5

Step-by-step explanation:

step1:v/2.2 -0.1=7.4

         add 0.1 on both sides

step2:v/2.2=7.5

       multiply by 2.2 on both sides

step3:v=16.5

s344n2d4d5 [400]3 years ago
4 0

2) v/2.2 - 0.1 = 7.4

   v/2.2 = 7.4 + 0.1

   v /2.2 = 7.5

   v = 7.5 * 2.2

   v = 16.5


4) -1.3g + 1.9 = -11.1

    -1.3g = -11.1-1.9

    -1.3g = -13

     g = -13/-13

      g = 1


6) -14.3 = -1.4 -3d

   -14.3 + 1.4 = -3d

    -12.9 = -3d

    3d = 12.9

    d = 12.9/3

    d= 4.3

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Andrew is wanting to build a slide for his daughter's tree house in the backyard. The tree house is approximately 5 feet off the ground and he wants the slide to have a 30 degree angle with the ground. He will need to by 10 ft of sliding board. 
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A bag contains six red marbles three blue marbles and five green marble the three marbles are drawn out of the bag what is the p
tia_tia [17]

Answer:

Step-by-step explanation:

Red = 6

Blue = 3

Green = 5

Total = 14

First marble = 6/14  = 3/7  You now have 5 reds and 13 total

Second Marble = 5 * 13  which brings you down to 4 red and 12 total.

Third Marble = 4/12 = 1/3

Result

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P(3 Red) = 1/7 * 5/13

P(3 Red) = 5/91

P(3 Red) = 0.0549 . Rounding to the nearest 1/100 depends on what you have been told about rounding. I would say the answer is 0.05 but your teacher may say something different.

8 0
3 years ago
The length of a parking Lot is 5 yards more than the width. If the area of the parking lot is 66 square yards, find the dimensio
Brums [2.3K]

Answer:

  6 yards by 11 yards

Step-by-step explanation:

Factors of 66 are ...

  66 = 1·66 = 2·33 = 3·22 = 6·11

The last pair of factors differ by 5, so represent the solution to the problem.

The width of the parking lot is 6 yards; the length is 11 yards.

7 0
3 years ago
Please help out with this if you can.
Pepsi [2]

Answer:

3/7 and 4/17

Step-by-step explanation:

a) given that Shen is playing a game and the probability of unlocking the treasure test is 3/10.

To find the odds in favour of his character unlocking the treasure chest.

Since probability = 3/10 we have favourable and total are in the ratio 3:10

i.e. favourable:Favourable+unfavourable= 3:3+7

Hene odds= favourable:unfavourable =3/7

Answer is 3/7

b) Given that odds against choosing a blue block are 13/4

This means there are 4 blue blocks and 13 other colour blocks.

Total blocks= 13+4 =17

No of blue blocks = 4

Probability of selecting blue block=4/17


6 0
3 years ago
Another geometry question♥♥
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Set the 2x - 1 equal to 9 then work backwards. 2x - 1 = 9 Nine minus one is eight divided by two is four. X = 4
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