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3 years ago

Six times a number increased by 7 is three more than the number. what’s the number math

Mathematics

1 answer:

padilas [110]3 years ago

5 0

Answer:

Write a multi step equation.

6x+7=x+3

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Sky high. on a sunny, warm day, a student decides to fly a kite on the college green just to relax. his kite takes off and soars

Ahat [919]

60 feet high is your answer

4 0

3 years ago

How to multiply a matrices 3x3 by 3x2

lesya692 [45]

The top row of matrix A (1, 2, 1) is multiplied with the first column of matrix B (1,0,-1) and the result is 1x1 + 2x0 + 1x -1 = 0 this is row 1 column 1 of the resultant matrix
The top row of matrix A (1,2,1) is multiplied with the second column of matrix B (-1, -1, 1) and the result is 1 x-1 + 2 x -1 + 1 x 1 = -2 , this is row 1 column 2 of the resultant matrix
Repeat with the second row of matrix A (-1,-1.-2) x (1,0,-1) = 1 this is row 2 column 1 of the resultant matrix, multiply the second row of A (-1,-1,-2) x (-1,-1,1) = 0, this is row 2 column 2 of the resultant
Repeat with the third row of matrix A( -1,1,-2) x (1,0, -1) = 1, this is row 3 column 1 of the resultant
the third row of A (-1,1,-2) x( -1,-1,1) = -2, this is row 3 column 2 of the resultant matrix

Matrix AB ( 0,-2/1,0/1,-2)

5 0

4 years ago

I have 2 seperate pairs of = sides l. My equal sides are next to each other. My four sides cannot be equal. What am I?

coldgirl [10]

If by next to you mean across from, it could be a parallelogram.

8 0

3 years ago

REINFORCE Tickets to the zoo cost $18 for adults and $8.25 for children. One day, the zoo sold 2,300 tickets and collected $30,1

jenyasd209 [6]

Given:

The cost of adults ticket = $18

The cost of children's ticket = $8.25

Total tickets = 2300

Total revenue = $30,168.

To find:

The number of children and number of adults attended the zoo that day.

Solution:

Let x be the number of children and y be the number of adults.

Equation for tickets: $x+y=2300$ ...(i)

Equation for revenue: $18x+8.25y=30168$ ...(ii)

Plot the graphs of the given equations on a coordinate plane as shown below.

From the graph it is clear that the graph of both equations intersect each other at (1148,1152).

It means the number of adults is 1148 and the number of children is 1152.

It can be solved algebraically as shown below:

Substitute the value of y in (ii) from (i).

$18x+8.25(2300-x)=30168$

$18x+18975-8.25x=30168$

$9.75x=30168-18975$

$9.75x=11193$

Divide both sides by 9.75.

$x=\dfrac{11193}{9.75}$

$x=1148$

Putting $x=1148$ in (i), we get

$1148+y=2300$

$y=2300-1148$

$y=1152$

Therefore, the number of adults is 1148 and the number of children is 1152.

8 0

3 years ago

If one point on a horizontal line has coordinates (3, 2), which of the points below are also on the line? Select all that apply.

stepan [7]

Answer:

If the line is horizontal, then all that have a 2 in the Y space will apply because the line goes across meaning that it won't change on the vertical axis.

(5,2) and (-2, 2)

6 0

4 years ago