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3 years ago

The steps below show the incomplete solution to find the value of x for the equation

2 answers:

8 0

In the step 3 you can add 5 on both sides so you gonna have :
4x-5 = 15
+5 +5 ⇒ 4x = 20 so thats the next step :))
i hope this be helpful
have a nice they

Lady_Fox [76]3 years ago

3 0

The next step should be 4x=20~

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Mary has a collection of nickels and quarters for a total of $4.90. If she has 42 coins in total, how many of each kind are ther

damaskus [11]

Answer:

14 quarters and 28 nickels

Step-by-step explanation:

System of Equations where x = number of quarters and y = number of nickels

(1) equation with value of each coin

0.25(x)+0.05(y) = 4.90

(2) total number of coins

x + y = 42

Solve system of equations using either substitution or elimination

(elimination multiplying equation 2 by -0.5)

.25(x) + 0.05(y) = 4.90

-0.05(x) - 0.05(y) = 42 * (-0.05)

(3) Resulting equation

.20(x) = 2.8

x = 14

plug x into equation 2

14 + y = 42

y = 28

There are 14 quarters and 28 nickels in Mary's collection.

5 0

3 years ago

Are 2(x-5) and 2x-5 equivalent

Mandarinka [93]

No, because with the parentheses, you distribute the 2 to both the x and the 5, making that equation 2x-10

7 0

3 years ago

Read 2 more answers

Can I have help :< Im stuck and confused

NeTakaya

Answer:

2 one 0 0 this one

0 0

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Find the slope of the line passing through the points (-5,6) and (-5,-5)

Leviafan [203]

Hi there! :) :D

Step-by-step explanation:

$SLOPE=\frac{Y_2-Y_1}{X_2-X_1}=\frac{RISE}{RUN}$

$\frac{(-5)-6}{(-5)-(-5)}=\frac{-11}{0}$

Undefined.

Therefore, the slope is -11/0

Final answer is -11/0

Hope this helps!

Thanks!

Have a nice day! :)

-Charlie

4 0

3 years ago

Three vertices of a rectangle are located on the coordinate plane shown below. Coordinate plane with points labeled Part A Which

Harlamova29_29 [7]

Answer:

Part A

Which is the ordered pair for Point B?

A. (2, 8)

B. (6, 8)

C. (6, 6)

D. (8, 6)

Part B

Which point is at (8, 2)?

A. A

B. B

C. C

D. None of these

Part C

What are the coordinates of point A?

Enter your answer in the boxes.

(

)

Part D

What are the coordinates of the fourth vertex of the rectangle?

Enter your answer in the boxes.

(

)Step-by-step explanation:

7 0

3 years ago