2 years ago

Given: 2x + 30 = -4(5x -2); Prove: x = -1

Mathematics

1 answer:

Lady_Fox [76]2 years ago

6 0

2x + 30 = -20x + 8
2x + 20x = 8 - 30
22x = -22
x = 1

You might be interested in

Ted can rope a calf in 15 and 30 hundredths of a second randy can rope in his calf in 15 and 5 tenths of a second who was faster

Alisiya [41]

Ted was faster by .2 seconds.

3 0

3 years ago

X/-9 =3<br>I dont understand this.

STatiana [176]

Final Answer: $x = -27$

Steps/Equations:

Question: $\frac{x}{-9} = 3$

Step 1: Move the negative sign to the left side.

$-\frac{x}{9} = 3$

Step 2: Multiply both sides by $3$ .

$-x = 3 * 9$

Step 3: Simplify $3 * 9$ to $27$ .

$-x = 27$

Step 4: Multiply both sides by $-1$ .

$x = -27$

~I hope I helped :)~

5 0

2 years ago

Read 2 more answers

carol bought 8 identical boxes for a total of 3.60$. how much did each box cost? which statement would you use?

Tju [1.3M]

You just divide the 3.60 by the eight and then you get 45 cents for each box.

7 0

2 years ago

Read 2 more answers

Can someone help me please

Dafna1 [17]

Answer:

B) -4, - 1, 2, 5, 8

Step-by-step explanation:

Hope it helps you in your learning process

8 0

1 year ago

Circle O has a circumference of approximately 28.3 cm. What is the approximate length of the radius, r?

Scrat [10]

Answer:

4.5 cm.

Step-by-step explanation:

We have been given that circle O has a circumference of approximately 28.3 cm.

We will use circumference formula to solve for the radius of our given circle.

$\text{Circumference of a circle}=2\pi r$

Upon substituting the measure of circumference in above formula we will get,

$28.3=2\pi r$

$r=\frac{28.3}{2\pi}$

$r=4.504084889500638\approx 4.5$

Therefore, the radius of circle O is 4.5 cm.

3 0

2 years ago

Read 2 more answers