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3241004551 [841]
2 years ago
11

2- Marcela deseja comemorar seu aniversário com uma festa e para isso pesquisou preços de duas empresas especializadas. A empres

a "Feliz Aniversário" cobra uma taxa fixa de R$ 200,00 e mais R$ 20,00 por convidado, enquanto a empresa "Parabéns a Você" cobra uma taxa fixa de R$ 100,00 e R$ 25,00 por convidado. Para que os preços oferecidos pela empresa "Feliz Aniversário" sejam mais vantajosos para Marcela, o número de convidados para sua festa de ser
a) maior que 20
b) menor que 20
c) menor ou igual a 20
d) maior ou igual a 20​
Mathematics
1 answer:
anygoal [31]2 years ago
4 0
Mdmdmdmksksksksksmsksksms
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PLEASE HELP ASAPP~<br> show work
Nastasia [14]

Answer:

D) m=1/2

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Hey, could someone please help me with this? Thanks.
Novosadov [1.4K]

Answer:

Part A: 1. (1, 0.5) 2. (2, 1) 3. (3, 1.5) 4. (4, 2) 5. (5, 2.5) 6. (6, 3)

Part B: Yes, this relation is in fact a function.

Part C: No, it would not be a function.

Step-by-step explanation:

Part A: Well, you start at 1 hr. right? yes. So then, at the very beginning at the problem, it says the candle burns at the rate of 0.5 in. per hour. So for 1 hour, the candle will burn .5 inches. At 2 hours, it will burn off 1 whole inch.

Part B:  1 hr. = .5 in. burn,  2 hrs. = 1 in. burns,  3 hrs. = 1.5 in. burns,  4 hrs. = 2 in. burns,  5 hrs.= 2.5 in. burns, 6 hrs. = 3  in. burns.

Part C:  1 hr.= .45 in. burn, 2 hrs. = .9 in burn,  3 hrs. = 1.35 in. burns, 4 hrs. = 1.8 in. burns, 5 hrs. = 2.25 in. burns, 6 hrs. = 2.7 in. burns.    It does not go at a constant rate. The number of inches are all over the place.

Hope this helps you out!! (:

4 0
3 years ago
The graph of y = f(x) is shown below. What are all of the real solutions of f(x) = 0?
bazaltina [42]
The answer is 7 because f is a denomination
6 0
3 years ago
According to the Pew report, 14.6% of newly married couples in 2008 reported that their spouse was of another race or ethnicity
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3 0
3 years ago
The sum of the arithmetic progression 4, ..., 76 is 1920. Find the number of terms and the common difference.​
valkas [14]

<u>Number of terms = 48</u>

<u>common difference = 1.5</u>

This question involves the concept of Arithmetic Progression.

  • The formula for sum of an arithmetic progression series with first and last term given is;

S_{n} = \frac{n}{2}(a + l)

where;

a = first term

l = last term

n = number of terms

  • From the given sequence, we see that;

first term; a = 4

last term; l = 76

Sum of A.P; S_{n} = 1920

  • Plugging in relevant values into the sum of an AP formula, we have;

1920 = \frac{n}{2}(4 + 76)

simplifying this gives;

1920 = 40n

n = 1920/40

n = 48

  • Formula for nth term of an AP is;

t_{n} = a_{1} + (n - 1)d

where;

a_{1} is first term

d is common difference

n is number of term

t_{n} is the nth term in question

the 48th term is 76

Thus;

76 = 4 + (48 - 1)d

76 - 4 = 47d

72 = 47d

d = 72/47

d ≈ 1.5

Thus;

Number of terms = 48

common difference = 1.5

Read more at; brainly.com/question/16935540

4 0
3 years ago
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