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Alenkinab [10]
3 years ago
5

The school is taking 80 students to the state fair for a field trip. There are students going from three different classes. Mr.

Johnson’s class has 27 students and Mrs. Martinez’s class is taking 31
students.

Which equation would represent how many students are selected from Mr. Garcia’s class?

A.

27+31=80+x

B.

80=27+31+x

C.

80+27=31−x

D.

x=80+(31−27)
Mathematics
2 answers:
Dmitry_Shevchenko [17]3 years ago
6 0
I very much believe it is C but not quite sure
Goryan [66]3 years ago
6 0
The sum of the three classes must equal 80.
We know that the number of students going are 27 and 31.
So add those amounts together plus the unknown number in Mr. Garcia's class (x) and set = 80
27 + 31 + x = 80
LETTER B
27 + 31 + x = 80
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we know that a₁ = 1, and aₙ = aₙ₋₁ + 2, is another way of saying, we add 2 to get the next term, namely, 2 is the common difference.


\bf n^{th}\textit{ term of an arithmetic sequence}
\\\\
a_n=a_1+(n-1)d\qquad
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\[-0.5em]
\hrulefill\\
a_1=1\\
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n=7
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\\\\\\
a_7=1+(7-1)2\implies a_7=1+12\implies a_7=13

5 0
3 years ago
2x + 4(x+3)= 42 I just want to give people some points also I need this answer
NARA [144]
Reduces to 6x=30
the answer is x= 5
5 0
3 years ago
Read 2 more answers
I NEED CORRECT ANSWER ​
RUDIKE [14]

Answer:

Step-by-step explanation:

Activity 3

Q1)  consistent, independent

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Q4) consistent, independent

4 0
3 years ago
Consider a solid spherical ball made of wood. Suppose a hole is bored (drilled) vertically through the center of the ball and th
lbvjy [14]

Answer:

The volume of solid is 268.08 inches cube.

Step-by-step explanation:

The solid spherical ball has height 8 inches that means the diameter of the sphere is 8 inches. So, the radius will be the half of diameter. Thus, radius is 4 inches.

Now use below formula to find the volume of solid sphere.

Volume = \frac{4}{3}\pi r^{2} \\Volume = \frac{4}{3}\pi (4)^{2} \\Volume = 268.08 \ in^{3}

Therefore, the volume of solid is 268.08 inches cube.

5 0
3 years ago
Simplify the expression
ollegr [7]

Answer:

<h3>              f(x) = x - 6</h3><h3>             g(x) = x - 5</h3>

Step-by-step explanation:

\dfrac{x^2-8x+12}{x^2-7x+10}\\\\x^2-7x+10\ne0\ \iff\ x=\frac{7\pm\sqrt{49-40}}{2}\ne0\ \iff\ x\ne5\ \wedge\ x\ne2\\\\\\\dfrac{x^2-8x+12}{x^2-7x+10}=\dfrac{x^2-2x-6x+12}{x^2-2x-5x+10}=\dfrac{x(x-2)-6(x-2)}{x(x-2)-5(x-2)}=\\\\\\ =\dfrac{(x-2)(x-6)}{(x-2)(x-5)}=\dfrac{x-6}{x-5}\\\\\\f(x)=x-6\\\\g(x)=x-5

4 0
3 years ago
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