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3 years ago

There are 29 students in Ms. Wong's class. There are 3 fewer girls than boys.

Mathematics

1 answer:

Citrus2011 [14]3 years ago

3 0

If there are 3 more girls than boys then you can divide 29 by 2 and have 1 get 3 more so girls= 13 boys= 16 16+13=29

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Please HELP with these 3 questions

Murrr4er [49]

Answer:

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Step-by-step explanation:

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3 years ago

How many oz of walnuts which cost $6/oz must be added to 2 oz of peanuts which cost $12/oz to make mixed nuts which cost $8/oz

Burka [1]

Answer: 4 oz

<u>Step-by-step explanation:</u>

Create a table. Multiply across and add down (the middle column cannot be added). The Mixture line creates the equation that must be solved.

Let x represent the unknown quantity of walnuts.

$\begin{array}{c|c|c||c}&\underline{Quantity}&\underline{Cost}&\underline{Qty \times Cost}\\Walnuts&x&6&6x\\\underline{Peanuts}&\underline{\qquad 2\qquad}&\underline{\qquad 12\qquad}&\underline{\qquad 24\qquad }\\Mixture&x+2&8&6x+24\end{array}$

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3 years ago

Find the equation of a line that passes through the given points<br>(-6,-5) and (6,-13)

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Answer:

y+5=-3/4(x+6)

or in slope intercept

y= -3/4x-38/4

Step-by-step explanation:

To write the equation of a line we must have a slope and a point. To find the slope we use the slope formula and substitute (x,y) points in it as shown below:

$m=\frac{y_2-y_1}{x_2-x_1}=\frac{-5--13}{-6-6}=\frac{-5+13}{-6+-6}=\frac{8}{-12}=\frac{-3}{4}$

Now that we have the slope, plug in the slope and choose one point to plug into the point slope formula. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form.

(y--5)=-3/4(x--6)

y+5=-3/4(x+6)

y+5=-3/4x-18/4

y=-3/4x-18/4-20/4

y= -3/4x-38/4

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3 years ago

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Answer:

The answer is D

Step-by-step explanation:

Coplanar means that they are on the same closed area(or plane)- P, M, C, N are all on the same Plane.

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3 years ago

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Suppose you start at the origin, move along the x-axis a distance of 4 units in the positive direction, and then move downward a

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Answer:

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Since we move 4 points along +ve x-axis so, x coordinate is 4

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so our position is (x,y,z) = (4,0,-5)

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3 years ago