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RideAnS [48]
3 years ago
12

Mario and Luigi are brothers.marios age is three times the difference between Luigis age and the number 9.if Mario is 18 years o

ld,how old is Luigi.show your work.
Mathematics
1 answer:
Black_prince [1.1K]3 years ago
8 0

To solve this, write an equation to model the situation and solve the equation.

The equation can be: 3(x-9)=27

Then solve the equation.

3x-27=18

3x=45

x=15

Luigi is 15 years old.

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According to the Internal Revenue Service (IRS), the chances of your tax return being audited are about 6 in 1,000 if your incom
Tamiku [17]

Answer:

The probability that none of these taxpayers will be audited by the IRS is 0.8996 or 89.36%

Step-by-step explanation:

According to given:

Probability of being audited for income less than $50,000 = 6/1000 = 0.006

Therefore,

Probability of not being audited for income less than $50,000 = 1 - 0.006 = 0.994

Similary,

Probability of being audited for income more than $100,000 = 49/1000 = 0.049

Therefore,

Probability of not being audited for income more than $100,000 = 1 - 0.049 = 0.951

Now, for the probability of 2 persons with less $50,000 income and 2 persons with more than $100,000 income, to not being audited, we must multiply the probabilities of not being audited of each of the 4 persons.

Therefore,

Probability that none of them is audited = (0.994)(0.994)(0.951)(0.951)

<u>Probability that none of them is audited = 0.8936 = 89.36%</u>

5 0
3 years ago
Can someone help me in question D
irina1246 [14]
I’m confused. The answer is already given. It’s 0.
Explanation: A dice only has up to 6 sides, therefore it won’t be possible for it to reach the number 8.
4 0
3 years ago
What is the independent variable?
Pavlova-9 [17]

Answer:

Step-by-step explanation:

So there are two types of variables we need to focus on, the first is the dependent variable, the second is the independent variable ( which is the one in question).  You asked about it in relation to mathematics, although even across the board, in science they both really mean the same thing. Here's an example, say you are taking a test, and the rubric for grading the test is 5 points (p) for every question (q) answered correctly. So given that information you can conclude that (p) is equal to 5 x the amount of questions you got right (p = 5q). The amount of points in this equation relies on how many questions you get right, you can't logically say that question (q) is equal to 5 points (p), because the questions don't depend on the points, the points depend on the amount of questions you get right. So that means since the points (p) depend on the # of questions you answered correctly, it is the dependent variable, there for by process of elimination you're independent variable is (q) since they don't rely on the points, the points rely on the questions. It all boils down to how well you can recognize this, and how complicated your question is, but hopefully this provided some insight.

6 0
3 years ago
Read 2 more answers
If FGH QRS, find the measure of Q<br><br> A. 9<br> B.28<br> C.11<br> D.34
Ne4ueva [31]

Answer:

  • 28°

Step-by-step explanation:

<u>Since ΔFHG ≅ QRC, the corresponding angles are congruent:</u>

  • ∠F = ∠Q
  • (2x + 10)° = (3x + 1)°
  • 3x - 2x = (10 - 1)°
  • x = 9°

<u>Then, the angle Q measures:</u>

  • ∠Q = (3*9 + 1)° = 28°
6 0
3 years ago
Find the solution to the inequality -0.3x-5&lt;6.7.
I am Lyosha [343]

Answer:

x > -39

Step-by-step explanation:

-0.3x < 6.7 + 5

-0.3x < 11.7

divide by -0.3

Answer is x > -39

6 0
3 years ago
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