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statuscvo [17]
3 years ago
9

4x + 2 + 4x + 3 = 45

Mathematics
2 answers:
adoni [48]3 years ago
7 0

Answer:

x = 5

Step-by-step explanation:

Step 1: Write equation

4x + 2 + 4x + 3 = 45

Step 2: Solve for <em>x</em>

  1. Combine like terms: 8x + 5 = 45
  2. Subtract 5 on both sides: 8x = 40
  3. Divide both sides by 8: x = 5

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

4(5) + 2 + 4(5) + 3 = 45

20 + 2 + 20 + 3 = 45

22 + 23 = 45

45 = 45

ahrayia [7]3 years ago
6 0

Answer:

x=5

Step-by-step explanation:

first, combine like terms. this results in 8x+5=45

subtract 5 on both sides

8x=40

divide by 8 on both sides

x=5

final answer^^

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The cost y (in dollars) to rent a lane at the bowling alley is proportional to the number x of hours that you rent the lane. It
Alika [10]

Answer:

a) y = 9x

b) For every increase of 1 hour the price to rent the lane increases by $9.

c) $27

Step-by-step explanation:

a) Since it costs $18 for 2 hours we can infer that for every 1 hour it costs $9.

So, the equation would look like this:

y = 9x

b) In this context, for every increase of 1 hour the price to rent the lane increases by $9. Like the question gave us, the price for 2 hours cost $18.

c) Plug 3 into the equation:

y = 9(3)

y = 27

Therefore, it costs $27 to rent the lane for 3 hours.

<em>I hope this helps!!</em>

<em>- Kay :)</em>

5 0
3 years ago
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3 Simplify the expression: 5! 2:3! 4. Simplify the expression:​
vredina [299]

Answer:

10

Step-by-step explanation:

5! 2:3! 4  \\  \\ =  \frac{5! \:  .2}{3! \: . 4}  \\  \\  =  \frac{5.4. \cancel{3!} \: . 2}{\cancel{3!} \:  .4}  \\  \\  =  \frac{40}{4}  \\  \\  = 10

6 0
3 years ago
HELP
jenyasd209 [6]

Answer:

20 cyclists

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In 2007 only two bikes are there which mean only 20 cyclists participated and that is the least amount out of all years

5 0
3 years ago
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Beth wants to buy a shirt that costs $40. She has a 20% discount. The sales tax is 8%.
Aleks04 [339]

Answer:

$34.56

Step-by-step explanation:

She will save 8 dollars from the discount.

The tax will be $0.56.

The final price of the shirt will be $34.56

6 0
3 years ago
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Hurry please answer questions 1, 2 and 3!!! thank you!!
chubhunter [2.5K]
What is the Pythagorean Theorem?

The PyTheorem states that -- actually, why not just simplify things and make it a formula?

a^{2} + b^{2} = c^{2}
where a and b are legs of a triangle and c is the hypotenuse of a triangle.

It is only true applying to right triangles.
Now what are the legs of a triangle? 
The sides that are NOT opposite the 90 degree angle! 

Now, all you have to do is find the LENGTHS of the three triangles!
Rise over run, remember?

Let's take the triangle in the top right of the coordinate plane for example.

A=(1,1)
B=(4,4)
unnamed point=(4,1)

Rise, or length of unnamed point to B?
(4,1) to (4,4)
(x,y), remember!
So? 4-1=3!

Run, or length of unnamed point to A?
(1,1) to (4,1)
Remember (x,y)?
So, 4-1=3!

The triangle has legs of 3 and 3.
Square em and add!
9+9=18
\sqrt{18}
\sqrt{3*6}
\sqrt{ 3^{2} *2}
3 \sqrt{2}

That's for length of AB!!
Now do the same for the remaining lengths!

Hope this helps!
8 0
3 years ago
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