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Gnoma [55]
3 years ago
10

There are 24 more students in the seventh grade class than the number g in the eighth grade class. The seventh grade class has 1

60 students. Write and solve an equation to find the number of students in the eighth grade class.
Mathematics
2 answers:
patriot [66]3 years ago
5 0

Answer:

y= 8th grade class,

y + 24 =160

subtract 24 from both sides

y=136

there are 136 students in the eight grade class

Step-by-step explanation:

Lubov Fominskaja [6]3 years ago
5 0

Answer:

136 students

Step-by-step explanation:

7th grade= 160 students

8th grade= g students

g= 160-24

g= 136 students

- I hope this helps have a great day!

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Label the coordinate plane, and then locate and label the set of points below.
fgiga [73]

Answer:

read explanation.

Step-by-step explanation: Your  x is your first number that you go over with and your y is the second number that you go up with.

7 0
3 years ago
Please anyone help me ASAP
OLga [1]
A nice, interesting question. We have to be known to a equation called as the Circle equation. It is given by the formula of:

\boxed{\mathbf{(x - a)^2 + (y - b)^2 = r^2}}

That is the circle equation with a representation of the variable "a" and variable "b" as the points for the circle's center and the variable of "r" is representing the radius of the circle.

We are told to convert the given equation expression into a typical standard format of circle equation. This will mean we can easily deduce the values of the following variables and/or the points of the circle including the radius of the circle by our standard circle equation via conversion of this expression. So, let us start by interpreting this through equation editor for mathematical expression LaTeX, for a clearer view and better understanding.

\boxed{\mathbf{Given \: \: Equation: x^2 + y^2 - 4x + 6y + 9 = 0}}

Firstly, shifting the real numbered values or the loose number, in this case it is "9", to the right hand side, since we want an actual numerical value and the radius of circle without complicating and stressing much by using quadratic equations. So:

\mathbf{x^2 - 4x + 6y + y^2 = - 9}

Group up the variables of "x" and "y" for easier simplification.

\mathbf{\Big(x^2 + 4x \Big) + \Big(y^2 + 6y \Big) = - 9}

Here comes the catch of applying logical re-squaring of variables. We have to convert the variable of "x" into a "form of square". We can do this by adding up some value on the grouped variables as separately for "x" and "y" respectively. And add the value of "4" on the right hand side as per the square conversion. So:

\mathbf{\Big(x^2 - 4x + 4 \Big) + \Big(y^2 + 6y \Big) = - 9 + 4}

We can see that; our grouped variable of "x" is exhibiting the square of expression as "(x - 2)^2" which gives up the same expression when we square "(x - 2)^2". Put this square form back into our current Expressional Equation.

\mathbf{(x - 2)^2 + \Big(y^2 + 6y \Big) = - 9 + 4}

Similarly, convert the grouped expression for the variable "y" into a square form by adding the value "9" to grouped expression of variable "y" and adding the same value on the right hand side of the Current Equation, as per the square conversion.

\mathbf{(x - 2)^2 + \Big(y^2 + 6y + 9 \Big) = - 9 + 4 + 9}

Again; We can see that; our grouped variable of "y" is exhibiting the square of expression as "(y + 3)^2" which gives up the same expression when we square "(y + 3)^2". Put this square form back into our current Expressional Equation.

\mathbf{(x - 2)^2 + (y + 3)^2 = - 9 + 13}

\mathbf{(x - 2)^2 + (y + 3)^2 = 4}

Re-configure this current Expressional Equational Variable form into the current standard format of Circle Equation. Here, "(y - b)^2" is to be shown and our currently obtained Equation does not exhibit that. So, we do just one last thing. We distribute the parentheses and apply the basics of plus and minus rules. That is, "- (- 3)" is same as "+ (3)". And "4" as per our Circle Equation can be re-written as a exponential form of "2^2"

\mathbf{(x - 2)^2 + \big(y - (- 3) \big)^2 = 2^2}

Compare this to our original standard form of Circle Equation. Here, the center points "a" and "b" are "2" and "- 3". The radius is on the right hand side, that is, "2".

\boxed{\mathbf{\underline{\therefore \quad Center \: \: (a, \: b) = (2, \: - 3); \: Radius \: \: r = 2}}}

Hope it helps.
4 0
3 years ago
Can someone help me please asap
riadik2000 [5.3K]

Answer:

A. 55°

B. 71°

C. 100°

D. 65°

E. 120°

F. 155°

G. 147°

H. 36°

I. 70°

J. 54°

K. 24°

L. 40°

Step-by-step explanation:

A. 180 - (90 + 35) = 55°

B. 180 - (34 + 75) = 71°

C. 180 - (43 + 38) = 100°

D. 180 - 50 = 130 / 2 = 65°

E. 180 - (90 + 30) = 60°

180 - 60 = 120°

F. 180 - (120 + 35) = 25°

180 - 25 = 155°

G. 180 - 145 = 35 + 112 = 148°

H. 180 - (40 + 26) = 144°

180 - 144 = 36°

I. 180 - (60 + 65) = 125°

180 - 125 = 55°

180 - (55 + 50) = 75°

180 - (75 + 35) = 70°

J. 180 - 116 = 64°

180 - (64 + 62) = 54°

K. 180 - (138 +18) = 24°

L. 180 - (80 + 60) = 40°

7 0
3 years ago
Which of the following expressions is not equivalent to <br> 2(b+​8)?
maksim [4K]

the awser is (-2)(8 + 6) + (-3)

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3 years ago
How do I work with percents? Describe Please! ​
ella [17]
With what in regard? For fractions, percentage is relative to the amount “full”. Think or a bottle of water, if it’s 50% full, it’s got 1/2 (50/100) filled with water. Simplifying is the process of taking a big fraction, say, 12/36, and finding the similarity to reduce it. 12 and 36 are both even, so let’s try to divide it by 2. 12/2 is 6, and 36/2 is 18. 6/18. However this is simplified it is not in simplest form, so we can divide It again. 6/2 is 3, and 18/2 9. 3/9 can be reduced by 3, making 1/3. 1/3 is the simplest form.
8 0
3 years ago
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