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sleet_krkn [62]
3 years ago
7

Can you help me this tteacher answer the box and also the questions

Mathematics
1 answer:
nordsb [41]3 years ago
4 0

Answer:

Step-by-step explanation:

2) x - y = 2/3

         x = \frac{2}{3} + y

3) 3x +2y = 6

          3x = 6 - 2y

Divide the equation by 3

\frac{3x}{3}=\frac{6}{3}-\frac{2y}{3}\\\\x = 2 - \frac{2}{3}y

4)

\frac{1}{4}x + y = 2\\\\ y = 2 - \frac{1}{4}x

5) 4x - 3y = -33

         -3y = -33 - 4x

Divide the equation by (-3)

\frac{-3}{-3}y=\frac{-33}{-3} - \frac{4}{-3}x\\\\ y = 11 + \frac{4}{3}x

1) Yes, it was easy to solve one variable in terms of the other.

2) Yes, it was easy to solve for y in terms of x. Coefficient of x was a fraction.

3) It will be easy if we take the value of x as multiples of 3

Example: if x = 3,

y = 11 + \frac{4}{3}*3 \\\\y = 11 + 4\\\\y = 15

It is easy to plot (3 ,15)

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Is dot multiplication easier than cross multiplication?
spayn [35]

<em>☽------------❀-------------☾</em>

<em>Hi there!</em>

<em>~</em>

<em>This question struck a chord with me as a highscooler. I never refer to the symbol x as an operator for multiplication because it too closely resembles a variable x. I only use a dot while indicating multiplication of two real numbers. Once students reach Algebra, the need for that is also limited.As far as the history goes, here's what I found: “Today elementary school students use the symbol × for multiplication. William Oughtred (1574-1660), a clergyman who gave free private lessons to pupils interested in mathematics, used the symbol × for multiplication. He also invented 150 other symbols. The × symbol was not readily accepted though. Gottfried Wilhelm Leibniz (1646-1716) thought it resembled the unknown x too much. Thomas Harriot (1560-1621) used the dot (·) for multiplication. This was not used much either until Leibniz adopted it.” It's no surprise that Leibniz was instrumental in the popularization of this notation, as much of the notation we use in Calculus was also developed by Leibniz. In short, there is no difference. Multiplication is a natural operation in mathematics and has just been symbolized in different people in different ways in different periods of time.</em>

<em>Hence they are both easy to use.</em>

<em>❀Hope this helped you!❀</em>

<em>☽------------❀-------------☾</em>

3 0
3 years ago
NEED HELP ASAP! GIVING BRAINLIEST TO WHOEVER ACTUALLY ANSWERS WITH HOW TO DO THE PROBLEM AS WELL. THANK YOU &lt;3
liq [111]

Answer:

2.53800027 ^9

Step-by-step explanation:

the product of both numbers is this.

just add both of them together. If im wrong, i will tell you another answer.

6 0
3 years ago
Express x3 + 4x2 – 45x in factored form.
kolbaska11 [484]
15 is the answer it is correct can
4 0
3 years ago
PLEASE ANSWER TO BE NAMED BRAINLIEST GET A THANK YOU AND A FRIEND REQUEST AND 10 P
BabaBlast [244]

Answer:

C, y = 1.2x

Step-by-step explanation:

Notice that x, representing time, is multiplied by 1.2 each time to get y, representing the number of problems. You can find this out by dividing y by x. 36/30 = 1.2.

48/40 = 1.2.

And so on...

P.S.: If you ever come across a problem like this, subtract one y value by another y value, then subtract the corresponding x values from eachother, then make both numbers into one fraction with y as the numerator and x as the denominator. In this problem, that would look like this:  

48 and 36 are both y values: 48 - 36 = 12

40 and 30 are the corresponding x values: 40 - 30 = 10

We get 12/10, which can be simplified to 1.2. The slope is 1.2.

This method will always work for a straight line and will be taught to you soon if you haven't learned it already.

5 0
3 years ago
Mr.Cooper has 3pails with golf balls in them.The first pail has 87ball.The second has 105golf balls and the third has 113golf ba
qwelly [4]

The total number of golf balls that Mr.Cooper has in the 3 pails is 305

<h3><u>Solution:</u></h3>

It is given that Mr. Cooper has 3 pails with golf balls in them.

The first pail has 87 ball

The second has 105 golf balls and the third has 113 golf balls.  

We need to find the total number of golf balls that Mr. Cooper has in the 3 pails.

To find the total number of golf balls we need to add the number of balls in each pail.

<em>Total number of golf balls in 3 pails = number of balls in first pail + number of balls in second pail + number of balls in third pail</em>

Total number of golf balls = 87+105+113

= 305 balls

Therefore, the total number of golf balls in all 3 pails combined it 305

3 0
3 years ago
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