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nika2105 [10]
3 years ago
10

NEED ASAP PLEASE

Mathematics
3 answers:
Vesna [10]3 years ago
7 1

Answer:

116.15

Step-by-step explanation:

1.95 - 30.00 - 7.20 - 38.50 = 38.50

77.65 = 38.50

x = $116.15

liberstina [14]3 years ago
4 1

Answer:

x - [1.95 + 30 + 7.20 + \frac{2}{3}{x - (1.95 + 30 + 7.20)}] = 38.5

Step-by-step explanation:

Let the total amount of money Liza has = $x.

Then, According to the question we get equation,

x - [1.95 + 30 + 7.20 + \frac{2}{3}{x - (1.95 + 30 + 7.20)}] = 38.5

⇒ x - [39.15 + \frac{2}{3}{x - 39.15}] = 38.5

⇒ x - 39.15 - \frac{2}{3}{x - 39.15} = 38.5

⇒ x - 39.15 = 3 × 38.5

⇒ x - 39.15 = 115.5

⇒ x = 154.65

Thus, she earned $154.65 by taking care of her neighbor's pet.

xxbtn2 years ago
0 0

1/3(m-1.95-30.0-7.20)=38.50
final answer:154.65

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Find the y and the x intercepts of the graph of the equation of y=3x+1
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Answer:

x-intercept ⇨ -1/3

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Step-by-step explanation:

⟺ Finding the x-intercept, substitute y = 0

y=3x+1\\0=3x+1\\3x+1=0\\

Move 1 to subtract the another side.

3x=-1

Then move 3 to divide -1, leaving only x as a subject since we want to find the x-intercept.

x=-\frac{1}{3} #

⟺ Finding the y-intercept, substitute x = 0

y=3x+1\\y=3(0)+1\\y=0+1

y=1 #

Tips:

Here's the tips about finding the intercepts of the graph.

⟺ For x-intercept, It's like solving an equation to find the x-term.

⟺ For y-intercept, It's like using the constant to answer.

As for y = mx+b where m = slope and b = y-intercept.

For a linear function, It's not necessary to substitute x = 0 just to find y-intercept as we can answer the constant as our y-intercept.

7 0
3 years ago
F(x) = x2 − 8x + 15 g(x) = x − 3 h(x) = f(x) ÷g(x)
olasank [31]
Hello : 
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C.) Mike is using the minimum recommended percentages for food, housing, and transportation. The costs are likely to exceed the expenses in each category.


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Step-by-step explanation:

8/3=3(c+5/3)

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8=9(c+5/3)

divide both sides by 9

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c=8/9-5/3

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3 years ago
Refer to the Trowbridge Manufacturing example in Problem 2-35. The quality control inspection proce- dure is to select 6 items,
Ivanshal [37]

Answer:

77.64% probability that there will be 0 or 1 defects in a sample of 6.

Step-by-step explanation:

For each item, there are only two possible outcomes. Either it is defective, or it is not. The probability of an item being defective is independent of other items. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

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This means that p = 0.15

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P(X \leq 1) = P(X = 0) + P(X = 1)

In which

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P(X = 1) = C_{6,1}.(0.15)^{1}.(0.85)^{5} = 0.3993

P(X \leq 1) = P(X = 0) + P(X = 1) = 0.3771 + 0.3993 = 0.7764

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