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gladu [14]
3 years ago
12

What is 2 (x + 3) = x - 4

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
6 0

Answer:

x= -10

Step-by-step explanation:

................

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During a concert, $3280 was received. A total of 760 people attended. Reserved seats were $6 and general admission seats were $4
Andre45 [30]

Answer:

The number of reserved seat is 120 and number of general seat is 640.

Step-by-step explanation:

Given,

Total number of seats = 760

Total collected Money = $3280

Solution,

Let the total number of reserved seat be x.

And  the total number of general seat be y

Hence total number of seats is the sum of total number of reserved seat and  the total number of general seats.

So the equation can be written as;

x+y=760\ \ \ \ equation\ 1

Again, total money collected is the sum of fees of one reserved seat times total number of reserved seat and fees of one general seat times the total number of general seats.

So the equation can be written as;

6x+4y=3280\ \ \ \ \ equation\ 2

Now, multiplying equation 1 by 4 and then subtract it from equation 2.

4x+4y=3040

(6x+4y)-(4x+4y)=3280-3040\\\\2x=240\\\\x=\frac{240}{2}=120

On substituting the value of x in equation 1, we get;

x+y=760\\120+y=760\\y=760-120=640

Thus the number of reserved seat is 120 and number of general seat is 640.

8 0
3 years ago
Which equation can be used to find the volume of a sphere that has a radius of 9 miles?
Licemer1 [7]
V=(4/3)pir^3

r=9
V=(4/3)pi9^3
V=12pi243
V=972pi

aprox pi=3.14
3052.08 mi^3
6 0
3 years ago
(Giving brainliest! Pls have at least one sentence to explain why you chose the answer :) )
Kryger [21]

Answer:

A

Step-by-step explanation:

Hope it helps

4 0
3 years ago
Read 2 more answers
Hi! PLS HELP!!! 15 points!!!
lesya692 [45]

Answer:

4 kilometers.....because 6000 meter is equal to 6 km .so

5 0
3 years ago
Read 2 more answers
The probability that the card drawn from a standard 52-card deck is queen is​
Fed [463]

There are 4 queens in a deck of cards.

You have 4 chances out of 52 total cards to get a queen.

The probability is 4 queens / 52 cards = 4/52, which can be reduced to 1/13

6 0
3 years ago
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