Answer:
The solution to the equation is:
- <u>x = 2.5</u> or <u>x = 5/2</u>
Step-by-step explanation:
To find the solution to the equation, you only must operate the equation until you clear the x variable, with the next steps:
And we solve:
- 4x + 28 = 38 (we multiply 4 by x and 7)
- 4x = 38 - 28 (we pass the +28 to subtract to the right side of the equality and operate)
- x = 10 / 4 (we pass the 4 that is multiplying to divide to the right side of the equality)
- <u>x = 2.5</u> (we divide)
As you can see, <u><em>the solution of the equation is </em></u><u><em>x = 2.5</em></u><u><em> or </em></u><u><em>x = 5/2</em></u>
Answer:
He can make 120 burgers in 30 minutes
Step-by-step explanation:
Set up a proportion where x is the number of hamburgers he'll make in 30 minutes:
=
Cross multiply:
x = 120
So, he can make 120 burgers in 30 minutes.
$240
Since a square yard is 3ft x 3ft, a square yard is equal to 9 square feet. Dividing 180 square feet by 9 square feet, we find that the room is 20 square yards.
Since carpet is $12 per square yard, and we have 20 square yards to cover, by multiplying 20 by $12, we find that the room will cost $240 to cover.
Answer:
Joyce has total 62 colored beads.
Step-by-step explanation:
For making groups of 9, let the number of beads be x.
total beads = 9x + 8
For making groups of 8, let the number of beads be y.
total beads = 8y + 6
As the total number of beads in both cases are same so,
9x + 8= 8y + 6
or, 9x-8y = -2
Now lets check the values through hit and trial;
First check; x=6, y=7
9*6 - 8*7 = -2
or, 54- 56 = -2
or, -2 =-2
This satisfies our equation.
Hence; Total beads = 9*6 + 8 = 62
The total number of beads joyce had is 62.
The measure of a triangle's interior angles add up to 180 degrees
2 + 4 + 9 = 15
180 / 15 = 12