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Tanya [424]
3 years ago
15

Simplify (3x – 5) + (5x + 1).

Mathematics
2 answers:
Andrej [43]3 years ago
7 0

Answer:

(-2x - 6)

Step-by-step explanation:

The given expression is ( 3x - 5 ) - ( 5x + 1 )

We have to simplify the given expression

First we will open the bracket having negative notation outside.

( 3x - 5 ) - 5x - 1

3x - 5 - 5x - 1

Now we will collect the similar terms together.

3x - 5x - 5 -1

-2x - 6

So the simplified form of the expression is (-2x - 6)

Luba_88 [7]3 years ago
5 0

Answer:

8x - 4

Step-by-step explanation:

queifnsldnalbdejsjsbsjas

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As a lifeguard, you can earn $5 per day plus $7.50 per hour. How many hours you must work to earn $50 in one day?
ELEN [110]

Answer:

Step-by-step explanation:

Earnings = 5 + 7.50x  You want to earn 50.00

50 = 5 + 7.50x             Set up equation  

45 = 7.50x                    Subtract 5

45/7.50 = (7.50/7.50) x Divide by 7.5

x = 6

You need to work 6 hours.

3 0
3 years ago
What is the volume of the pyramid <br><br> 150ft^3 <br> 540 ft^3 <br> 432 ft^3<br> 48 ft^3
marin [14]

Answer:

Option (4)

Step-by-step explanation:

To calculate the volume of a pyramid we use the formula,

V = \frac{1}{3}(\text{Area of the base})(\text{Height of the pyramid})

Area of the square base = (Side)²

                                         = (6)²

                                         = 36 square ft

Height of the pyramid 'h' = \sqrt{l^{2}-(\frac{\text{Side length of the base}}{2})^{2}} [By Pythagoras theorem]

h = \sqrt{5^{2}-3^{2}}

h = \sqrt{16}

h = 4 ft

Therefore, volume of the given pyramid = \frac{1}{3}(36)(4)

                                                                   = 48 cubic ft

Option (4). 48 ft³ will be the answer.

3 0
3 years ago
By which theorem or postulate can the triangles be proven similar?
bogdanovich [222]
The answer is D hope it helps
8 0
3 years ago
What is the gif of 56 and 21
dusya [7]
If you mean the difference it'd be 35
4 0
3 years ago
Find the product <br><br> 5/6 * 30
olga55 [171]
25

Explanation:

5/6 • 30/1

Because 30 is a whole number one puts it over 1 and since it’s multiplication one multiplies straight across

Leaving:

150/6

And that simplifies to 25
4 0
2 years ago
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