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Lilit [14]
3 years ago
8

Michael is 3 times as old as Brandon. 18 years ago, Michael was 9 times as old as Brandon

Mathematics
2 answers:
german3 years ago
8 0
Michael is probably 9
umka21 [38]3 years ago
7 0

Answer: 3b-18=9(b-18)

3b-18=9b-162

6b=144

b=24

3b=72

Brandon is 24, Michael is 72.

Step-by-step explanation:

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At a certain high school, 35 students play only stringed instruments, 10 students play only brass instruments, and 5 students pl
Sophie [7]

Answer:

9/11

Step-by-step explanation:

Well we know there are 55 students in total and only 45 of them can either play a string or brass instrument.

So 45/55 is 9/11

Thus probably is 9/11 of a randomly selected student who plays either a string or brass.

5 0
2 years ago
Find the area of the regular polygon. Round your answer to the nearest tenth. 344.3 in.2 172.2 in.2 84.4 in.2 50.0 in.2
My name is Ann [436]
Area = \frac{a X p}{2}
Area = apothem times perimeter over 2



7 0
3 years ago
Given that (1, 0, 1) is a solution to a system of three linear equations, which of the following is true about the system?
Anna35 [415]
<h3>Answer:  Choice C) </h3><h3>The system can only be independent and consistent</h3>

===========================================================

Explanation:

Let's go through the answer choices

  • A) This isn't possible. Either a system is consistent or inconsistent. It cannot be both at the same time. The term "inconsistent" literally means "not consistent". It's like saying a cup is empty and full at the same time. We can rule out choice A.
  • B) This is similar to choice A and we cannot have a system be both independent and dependent. Either a system is independent or dependent, but not both. Independence means that the two equations are not tied together, while dependent equations are some multiple of each other. We can rule out choice B.
  • C) We'll get back to this later
  • D) The independence/dependence status is unknown without the actual equations present. However, we know 100% that this system is not inconsistent. This is because the system has at least one solution. Inconsistent systems do not have any solutions at all (eg: parallel lines that never cross). We can rule out choice D because of this.

Going back to choice C, again we don't have enough info to determine if the system is independent or dependent, but we at least know it's consistent. Consistent systems have one or more solutions. So part of choice C can be confirmed. It being the only thing left means that it has to be the final answer.

If it were me as the teacher, I'd cross out the "independent" part of choice C and simply say the system is consistent.

6 0
3 years ago
Read 2 more answers
Help! If anyone knows thanks
DerKrebs [107]
A:
2t
t is the number of toys

b:
(p+12)/16
p is the price
6 0
3 years ago
Read 2 more answers
Is 2x+4+3(2x-1) equivalent to 8x-2
almond37 [142]

Answer: 2x+4+3(2x-1) is not equivalent to 8x-2. it is equivalent to 8x+1

Step by step solution:

Step 1 :

Equation at the end of step 1 :

(2x + 4) + 3 • (2x - 1)

Step 2 :

Final result :

8x + 1

3 0
3 years ago
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