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irina1246 [14]
1 year ago
9

Needs to be submitted soon pls help! ASAP! Thank u (also step by step explanation if can)

Mathematics
1 answer:
ozzi1 year ago
5 0

Answer:

7

Step-by-step explanation:

3x+12x+12=7\\15x+12=7\\15x=-5\\x=\frac{1}{3}

____

3(\frac{1}{3} )+4y=7\\1+4y=7\\4y=6\\y=1.5

<h3>____</h3>

3(\frac{1}{3}) +4(1.5)=7

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CAN SOMEONE HELP ME WITH THIS PLEASE!!
Delvig [45]

Answer:

B

Step-by-step explanation:

the money increases hourly so A and C are wrong. and it is constant so the answer is B

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3 years ago
If you sleep 33% in a day, how many hours is that?
strojnjashka [21]
We know that
one day is equal to 24 hrs
so
33 % of the day is equal to
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the answer is
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2 years ago
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Two roots of a third degree polynomial function f(x) are 4 and 4. Which statement describes the number and nature of all roots
VladimirAG [237]

Answer:f(x) has three real roots

Step-by-step explanation:

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2 years ago
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A boat costs $14,000 and decreases in value by 5% per year. How much will the boat be worth after 3 years?
kati45 [8]

Answer:

$12,003.25.

Step-by-step explanation:

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8 0
2 years ago
How can we define appropriate quantities for the purpose of descriptive modeling?
anastassius [24]

Answer:

Use units as a way to understand problems and to guide the solution of multi-step problems; choose and interpret units consistently in formulas; choose and interpret the scale and the origin in graphs and data displays

Step-by-step explanation:

You've assigned your math class a set of word problems. One of the questions ends with, "How many people voted for candidate Jones?" Fingers fly over calculators as your students try to determine the correct answer. After a minute or two, Tommy raises his hand and announces his answer: 4,602.28

Everything inside of you wants to scream, "Are you out of your mind, Tommy boy? A closer answer would be 4 because at least it would be possible! How on earth could a candidate receive 28 hundredths of a vote?"

Okay, breathe. Poor Tommy has made the kind of error that drives math teachers like you to the brink of insanity. He's given an answer that makes absolutely no sense.

Whatever else math is or isn't, it is always logical. Answers should always make sense. Math frequently relies on general knowledge—concepts that we assume are known by everyone over the age of about seven—along with a healthy dose of common sense (not you, Thomas Paine).

The problem, of course, is that people have a tendency to ignore both common sense and the knowledge that they possess. Particularly when calculators are involved, there's the tendency to run with the answer you're given. That ignores one very basic principle: the calculator answers the question you ask, not the one you intended to ask.

This was just an example of Descriptive Modeling

Thank you for asking this question

please choose me as brainiest Answer to support me

3 0
2 years ago
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