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elena-14-01-66 [18.8K]
3 years ago
5

I need help with this 1st problem and if you can help me this one and with the other ones I will post them thx

Mathematics
1 answer:
guapka [62]3 years ago
8 0
10 people....

40            3                120
----     *   -----      =     --------   = 30
1              4                  4

Within 30, 1/3 got a part in the show....

30            1                   30
-----     *   ----         =    -------   = 10 
1               3                   3    

10 people got parts 


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Please help how do I do this ??
AleksAgata [21]
For 10 here is the answer and for 9 i’ll reply to my comment

3 0
3 years ago
You buy a total of 25 burgers and tacos for $67.50. The burgers cost $3.50 each and the tacos cost $2.25 each. Find the number o
Ahat [919]

Answer: you bought 9 burgers and 16 tacos

Step-by-step explanation:

Let x represent the number of burgers that you bought.

Let y represent the number of tacos that you bought.

You buy a total of 25 burgers and tacos. It means that

x + y = 25

The burgers cost $3.50 each and the tacos cost $2.25 each. The total cost of the burgers and tacos that you bought is $67.50. It means that

3.5x + 2.25y = 67.5- - - - - - - - - - - - 1

Substituting x = 25 - y into 1, it becomes

3.5(25 - y) + 2.25y = 67.5

87.5 - 3.5y + 2.25y = 67.5

- 3.5y + 2.25y = 67.5 - 87.5

- 1.25y = - 20

y = - 20/ - 1.25

y = 16

x = 25 - y = 25 - 16

x = 9

5 0
3 years ago
Joe has 6 frogs, 8 hamsters, 9 goldfish, and 3 snakes. What is the ratio of Joe's frogs and snakes to hamsters?
Morgarella [4.7K]

Answer:

6:3:8

Step-by-step explanation:

We need to find the amount of:

Frogs= Joes has 6

Snakes= Joe has 3

Hamster= Joe has 8

So, the ratio of Joe's frogs and snakes to hamsters is 6: 8 : 3.

Hope that helped! :)

6 0
2 years ago
Read 2 more answers
WILL GIVE BRAINLIEST TO PERSON WHO ANSWERS CORRECTLY!!!!!!
maria [59]
I'm pretty sure its the second one
3 0
3 years ago
Solve a = D + C/B for d<br><br> d = ab - c<br> d = ab + c<br> d = a/b - c
harkovskaia [24]
Your answer is ab -c

multiply both sides by B
Then subtract C
6 0
2 years ago
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