Each T shirt costs $21.
Since Martha takes her niece and nephew to a concert, and she buys T-shirts and bumper stickers for them, and the bumper stickers cost $ 1 each, and Martha's niece wants 1 shirt and 4 bumper stickers, and her nephew wants 2 shirts but no bumper stickers, to determine, if Martha's total is $ 67, what is the cost of one shirt, the following calculation must be performed, posing linear equations:
- 1 bumper sticker = $ 1
- 1 T shirt + 4 bumper stickers + 2 T shirts = $ 67
- 1X + 4 x 1 + 2X = 67
- 3X = 67 - 4
- X = 63/3
- X = 21
Therefore, each T shirt costs $21.
Learn more about linear equations in brainly.com/question/11897796
Answer
Simplifying
9x + -7i = 3(3x + -7u)
Reorder the terms:
-7i + 9x = 3(3x + -7u)
Reorder the terms:
-7i + 9x = 3(-7u + 3x)
-7i + 9x = (-7u * 3 + 3x * 3)
-7i + 9x = (-21u + 9x)
Add '-9x' to each side of the equation.
-7i + 9x + -9x = -21u + 9x + -9x
Combine like terms: 9x + -9x = 0
-7i + 0 = -21u + 9x + -9x
-7i = -21u + 9x + -9x
Combine like terms: 9x + -9x = 0
-7i = -21u + 0
-7i = -21u
Solving
-7i = -21u
Solving for variable 'i'.
Move all terms containing i to the left, all other terms to the right.
Divide each side by '-7'.
i = 3u
Simplifying
i = 3u
Answer:
A) A car with an initial value of $32,000 is depreciating in value at a rate of 8.5% each year
(B) A job pays a base salary of 12,000 and increases annually at a rate of 7%
4,5,6 , 6 would be the correct answer because it’s asking to know how many slices by people.
so 6 is your answer
Answer: x = 15
Step-by-step explanation: The first thing to note is that what we have here are two similar triangles. First we have triangle ABC and secondly we have triangle EDC. Line BD is a transversal that cuts line AE at point C. Hence we can deduce that angle ACB is equal in measurement to angle ECD (opposite angles). Next we also observe that the other two angles are right angles, that is, 90° in size. Therefore we can conclude that the other two angles (angle ABC and angle EDC) are also of the same measurement.
We can now establish the ratio of the similar sides.
Line AB = Line ED
Line AC = Line EC
AB/ED = AC/EC
24/40 = 2x/3x + 5
3/5 = 2x/3x + 5 {the left hand side has been reduced to it's simplest form}
Next we cross multiply and that gives us
3(3x + 5) = 5(2x)
9x + 15 = 10x
Subtract 9x from both sides of the equation
15 = 10x - 9x
15 = x
