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bazaltina [42]
4 years ago
7

There are 22 events at an indoor track and field meet. The ratio of track events to field events is 8:3. How many of the events

are track events? Explain how you found your answer.
Mathematics
1 answer:
MA_775_DIABLO [31]4 years ago
4 0
First, let's look at the ratio.
You also know that for every 8 indoor events, there is 3 field events.
Therefore, the amount of indoor events is 8 on 11 events total, as 8 + 3 = 11
 

Then, let's look at the actual number of events. If there is 22 events total, you need to solve this proportion :

\frac{8}{11} =  \frac{?}{22}
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A container holds 9 red markers, 13 blue markers, and 17 green markers. You will randomly select two markers without replacement
IRISSAK [1]

Answer:

a.

                         R-------8/38--------RR

R------9/39--------B-------13/38-------RB

                          G------17/38--------RG

                          R-------9/38--------BR

B--------13/39------B-------12/38-------BB

                           G-------17/38-------BG

                             R-----9/38--------GR

G---------17/39-------B------13/38-------GB

                              G------16/38-------GG

b).

  • 9 ways
  • ways you can select 1 blue are; RB,BR,BG,GB

RB=9/39 × 13/38=3/38

BR= 13/39 × 9/38 =3/38

BG= 13/39 × 17/38=17/114

GB= 17/39 × 13/38=17/114

=3/38 +3/38+17/114+ 17/114 =26/57

  • Probability of selecting 2 red markers= RR = 9/39 × 8/38 =12/247

  • Probability of selecting a green marker and then a red marker= GR= 17/39×9/38 =51/494

8 0
4 years ago
(-5x +2)(-6x +1)<br> Answer (in Standard Form) =<br> a<br> b=<br> C=
Stella [2.4K]
47.47 ................................

6 0
3 years ago
PLS HELP ME ASAP FOR QUESTION 4!!! (MUST SHOW WORK!!) + LOTS OF POINTS!! *branliest*
algol13
No solution because if you distribute -4 to both 2.5y and -3.25 your equation becomes -10y+13-15 1/4=-10y. Then you subtract both 13 and 15 1/4 and get -2.25 so your equation becomes -10y-2.25=-10y. After that you add 10y to both side so your equation becomes -2.25=0 which has no solution.
4 0
4 years ago
Which number is the greatest
sdas [7]

Answer:

the answer is b) 9.6×10^-6

8 0
3 years ago
This hanger is in balance. There are two labeled weights of 8 grams and 20 grams.The four circles each have the same weight.
Svet_ta [14]

Answer:

each circle weight 3 grams

Step-by-step explanation:

I think your question missed key information, allow me to add in and hope it will fit the orginal one. Please have a look at the attached photo,

<em>This hanger is in balance. There are two labeled weights of 8 grams and 20 grams.The four circles each have the same weight.</em>

<em>what is the weight of each circle.​</em>

My answer:

Let x is the the weight of the  circle

Because this hanger is in balance, so we can form the equation:

20 = 8 + 4x

<=> 4x = 20-8

<=> 4x = 12

<=> x = 3

So each circle weight 3 grams

5 0
3 years ago
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