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serg [7]
3 years ago
7

Need help please. I'm having trouble with this question and I need to get this right on my study guide for my big test to past.

Someone be my life saver!!

Mathematics
1 answer:
Rufina [12.5K]3 years ago
7 0
The ordered pair (1, 40) represents the unit rate of the relationship.
The ordered pair (3, 120) means that Tien can type 120 words in 3 minutes.
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alabama power came by my house that i just bought and installed a new wire support for one of the telephone poles on the propert
PolarNik [594]

Answer:

30 feets

Step-by-step explanation:

subtrqct 55-25 = 30

8 0
2 years ago
Supposed original quantity is 179 five and the new quantity is 126. Write an expression that represents the percent change. Find
vlabodo [156]

Answer:

This is a -29.6% change

Step-by-step explanation:

To find the percent change, use the percent change equation.

(New - Old)/(Old) * 100 = Percent Change

(126 - 179)/(179) * 100 = Percent Change

-53/179 * 100 = Percent Change

-.296 * 100 = Percent Change

-29.6% = Percent Change

4 0
2 years ago
Kenneth and 3 friends visited the bowling alley.
yKpoI14uk [10]

Answer:

The shoe rental is a one-time expense for the day.  So that would be 3 * 2.5

The variable is the number of games.  As the question is written, I'm assuming you want the total # of games.  So, the formula for that part would be 5.3x

Putting it together:

(3 * 2.5) + 5.3x = 55.2

Step-by-step explanation:

i asked my pre-algebra teacher and she helped me with the question cuz she wants me to get good grades

5 0
3 years ago
Given that ABCD is a rhombus, what is the value of x?
Maslowich

Answer:

d

Step-by-step explanation:

We know that diagonals bisect angles of a rhombus, meaning that they split the angles of two equal parts, that opposite angles are equal, and that the angles of a quadrilateral, such as a rhombus, add up to 360 degrees.

Looking at the drawing I uploaded, and taking into account that diagonals bisect angles of a rhombus, we can say that angle x = y and z = 5x-18

Next, given that opposite angles are equal, we can say that angle B = angle D and angle A = angle C. Therefore,

A+B+C+D= 360 (as the angles of a quadrilateral add up to 360)

A + B + A + B = 360 (plugging in A for C and B for D)

2 ( A + B) = 360

A + B = 180

x + y + z + 5x - 18 = 180 (plugging x+y in for A, and z+5x-18 in for B, as x and y make up A and z and 5x-18 make up B)

x+x+5x-18+5x-18 = 180 (because x=y and z=5x-18)

2(x+5x-18) = 180

divide both sides by 2

x+5x-18=90

6x-18=90

add 18 to both sides

6x=108

divide both sides by 6

x = 18

4 0
2 years ago
Factor completely 4p2 - 25q2 =
mel-nik [20]
Answer: 2(4p - 25q)


Explanation: 4p*2 = 8p - 25q*2 = 8p - 50q = 2(4p - 25q)
6 0
3 years ago
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