All categories

3 years ago

Solve for x: 4x+16 = 2(2x+16)

1 answer:

5 0

First lets expand the expression using distributive property

( 4x + 16 = 4x + 32)
Next lets cancel 4x on both sides

(16 = 32)

Since we know sixteen equaling thirty-two is not correct, there is no answer.

*I got 16 = 32 by simplifying the first step of expanding and there really is no need to subtract 16 from both sides, you can but either way its no answer just same result.

You might be interested in

A rocket takes off from a height of 30 feet with an initial velocity of 150 ft /sec. The equation that models the path that the

algol13

Answer:

The rocket will hit the floor at 9.57 seconds

Step-by-step explanation:

Given

$G(x) = -16x^2 + 150x + 30$

Take off height = 30ft

Initial velocity= 150ft/s

Required [Missing from the question]

Time to hit the ground

The rocket will hit the ground at:

$G(x) = 0$

So, we have:

$0 = -16x^2 + 150x + 30$

Rewrite as:

$16x^2 - 150x - 30=0$

Solve using quadratic formula, we have:

$x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}$

Where:

$a= 16\\ b = -150\\ c = -30$

So, we have:

$x = \frac{-(-150) \± \sqrt{(-150)^2 - 4*16*(-30)}}{2*16}$

$x = \frac{150 \± \sqrt{22500 +1920}}{32}$

$x = \frac{150 \± \sqrt{24420}}{32}$

$x = \frac{150 \± 156.27}{32}$

Split:

$x = \frac{150 + 156.27}{32}\ or\ \frac{150 - 156.27}{32}$

$x = \frac{306.27}{32}\ or\ \frac{-6.27}{32}$

Time cannot be negative;

So:

$x = \frac{306.27}{32}$

$x = 9.57$

<em>Hence, the rocket will hit the floor at 9.57 seconds</em>

3 0

3 years ago

The store is having a sale 2 an a half pounds of sugar for $10.50. What is the unit price in a division sentence?

iris [78.8K]

$10.50/2.5 lb= 4.20 per lb

4 0

4 years ago

I'm currently taking Developemental Math and I need help with compound interests. Can anyone help?

Tju [1.3M]

Hello there,

It depends on the question!! Give me a question and i will try to answer it

Thanks

8 0

4 years ago

blondinia [14]

I’m guessing 8 is the radius so the formula is 2pi(r)

And when you plug in 8 into r you have 2pi(8)

When you solve it you should get 50.24

Can you pls mark brainleist

5 0

3 years ago

Help me solve this problem; In a metal alloy, the ratio of zinc to copper is 3 to 17. If there are 850 lbs of copper, how much i

Vedmedyk [2.9K]

Answer:

how much is there what??

Step-by-step explanation:

zinc = 150lbs

Total alloy = 1000lbs

5 0

3 years ago