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jekas [21]
2 years ago
10

A total of 249 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t

ickets sold was two times the number of adult tickets sold. How many adult tickets were sold?
Mathematics
1 answer:
inna [77]2 years ago
4 0

Answer:

83

Step-by-step explanation:

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Write an equation of the line that passes through the point (3,0) and<br> has the slope, m = -2.
kenny6666 [7]
The equation of a line is Y=mx+b
You know that the slope is -2 and the slope is 'm' so sub it into the equation.
Y=-2x+b
To have an equation of a line you need the 'b' or 'y' intercept and the slope.
This means you have to find the 'b' because you already know the slope which is -2. To find the 'b' you have to sub in the coordinates and then solve for 'b'
Y=-2x+b
(x,y)
(3,0)
0=-2(3)+b
0=-6+b
6=b
Therefore the equation of the line is Y=-2x+6 <span />
6 0
3 years ago
How to solve equations with variables on both sides step by step?
USPshnik [31]
2x+1=4x+6
-2x -2x

1=2x+6
-6 -6

-5=2x
/2. /2

-2.5=x

(This kind of equation?)
5 0
3 years ago
The bases of a trapezoid are 16.8 yards and 6.9 yards. what is the average of the two bases?
kow [346]
The average = 1/2 (sum of the two bases) = 1/2 ( 16.8 + 6.9) = 11.85 yards
3 0
3 years ago
Read 2 more answers
Find f(-2) for the function f(x)=5x+14
Stels [109]

Answer:

f(-2)=(-11)

Step-by-step explanation:

f(-2)=5(-5)+14

=(-25)+14

=(-11)

6 0
3 years ago
A is an m×n matrix.Check the true statements below:A. The kernel of a linear transformation is a vector space.B. If the equation
Bess [88]

Answer:

Results are (1) True. (2) False. (3) False. (4) True. (5) True. (6) True.

Step-by-step explanation:

Given A is an m\times n matrix.  Let T :U\to V  be the corresponding linear transformationover the field F and \theta be identity vector in V. Now if x\in Ker( T)\implies T(x)=\theta.

(1) The kernel of a linear transformation is a vector space : True.

Let x,y\in Ker( T), then,

T(x+y)=T(x)+T(y)=\theta+\theta=\theta\impies x+y\in Ker( T)

hence the kernel is closed under addition.

Let \lambda\in F, x\in Ker( T), then

T(\lambda x)=\lambda T(x)=\lambda\times \theta=\theta

\lambda x\in Ker(T) and thus Ket(T) is closed under multiplication

Finally, fore all vectors u\in U,

T(\theta)=T(\theta+(-\theta))=T(\theta)+T(-\theta)=T(\theta)-T(\theta)=\theta

\implies \theta\in Ker(T)

Thus Ker(T) is a subspace.

(2) If the equation Ax=b is consistent, then Col(A) is \mathbb R^m : False

if the equation Ax=b is consistent, then Col(A) must be consistent for all b.

(3) The null space of an mxn matrix is in \mathbb R^m

: False

The null space that is dimension of solution space of an m x n matrix is always in \mathbb R^n.

(4) The column space of A is the range of the mapping x\to Ax

: True.

(5) Col(A) is the set of all vectors that can be written as Ax for some x. : True.

Here Ax will give a linear combination of column of A as a weights of x.

(6) The null space of A is the solution set of the equation Ax=0.

: True

5 0
3 years ago
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