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kicyunya [14]
3 years ago
13

5. Which choice below could match the following ratio: 4 to 5 Look at

Mathematics
1 answer:
lara31 [8.8K]3 years ago
7 0

Answer:

A- A teacher has 12 girls and 15 boys in her class.

Step-by-step explanation:

12/3= 4

15/3= 5

This means that it will have a ratio of 4 to 5 because it is the only problem where you are able to divide both with a common number, which is 3.

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Help please. Forthefunction f(x)=x(x+3)(x−1)
konstantin123 [22]

Answer:

x-intercepts= (-3,0) , (1,0) and y-intercepts= (0,-3)

For the graph part it would be graphed and shaped like a U.

Step-by-step explanation:

Hope this helps :)

8 0
3 years ago
What is 99+100 divided by 54
vazorg [7]
\frac{99 + 100}{54}

Simplify.

\frac{199}{54}

Turn this into a mixed fraction.

Think : How many times does 54 go into 199??

Well, it goes into 199 3 times! :)

So, do 54 × 3, then subtract that number from 199.

54 × 3 = 162

199 - 162 = 37

So, our remainder is 37.

Our whole number is 3, because that's many times it went into 199.

And our denominator (bottom number) is 54, as it always has been.

So, \frac{99 + 100}{54}  = 3  \frac{37}{54}

~Hope I helped!~
6 0
3 years ago
How many different 2-digit numbers are there with the following property: the tenth digit is greater than the units digit?
EastWind [94]

Answer:

There is 45 different 2-digit numbers.

Step-by-step explanation:

My way is kinda dumb, but it still works. So, 2 digit numbers is from 10-99. We can start from the 10-19 first.

10, 11,12,13,14,15,16,17,18,19

We need to find the numbers that the tenth digit is greater than the units digit.

<u>10</u>, 11,12,13,14,15,16,17,18,19

Since 1 is the tenth digit, all the ones digits are all going to be bigger. Same goes with 20-29. Then you will have 2 numbers that the tenth digit is greater. My way applies when the tenth digit is only less than the ones digit, not greater. If you do this way...

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

10-19: 1 number

20-29: 2 numbers

30-39: 3 numbers

40-49: 4 numbers

50-59: 5 numbers

60-69: 6 numbers

70-79: 7 numbers

80-89: 8 numbers

90-99: 9 numbers

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

So, if you add 1+2+3+4+....+9(which all of you probably memorized by now) it would be 45. The answer is 45. Hope this helped!

8 0
3 years ago
HELPPPPPPP PLEASE I WILL DO ANYTHING JUST ANYTHING
evablogger [386]

Answer:

all work is shown and pictured

6 0
4 years ago
1 + 2k = 5k + 7 I got k=2 don't know if it's the right answer ?
DochEvi [55]
You are close, but it is not the correct answer.

1 + 2k = 5k + 7

First, since we are trying to get the variable by itself, we need to move all things to one side. Let's subtract 1 from each side. 
2k = 5k + 7 - 1

Second, we can now subtract (7 - 1) to get 6. Let's add that into our problem and then subtract 5 from each side, still trying to get the variable by itself.
2k - 5k = 6

Third, subtract (2k - 5k) to get -3k. Hint the negative symbol now. If the problem were switched the other way, it would still be a positive. 
-3k = 6

Fourth, we can now divide each side by -3. This results in a fraction and also getting the variable by itself on one side of the problem. Remember the negative sign in front of the fraction since (-3) carried it.
k = - \frac{6}{3}

Fifth, this is our last step. We need to simplify the fraction. Since out fraction is 6/3, which number multiples by 3 to get the answer of 6? The answer is 2, since (3 × 2 = 6). Don't forget the negative!
k = -2

Answer: \fbox {k = -2}
4 0
4 years ago
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